CNC Turning Aluminum Parts

CNC Turning Aluminum Parts: A Step-by-Step Guide

Welcome to my blog! Today, I’ll be guiding you through the process of CNC turning aluminum parts. CNC turning, also known as computer numerical control turning, is a precision machining process that uses a computerized system to control a machine tool. This process is commonly used to manufacture complex parts made of metal, including aluminum. In this blog post, I’ll cover the basic steps involved in CNC turning aluminum parts.

CNC Turning Aluminum Parts

Step 1: Material Selection

The first step in the CNC turning process is material selection. Aluminum is a lightweight and ductile metal, making it suitable for many applications. When selecting an aluminum alloy for your project, consider factors such as tensile strength, hardness, and corrosion resistance. Common aluminum alloys used for CNC turning include 6061, 7075, and 2024.

Step 2: Design and Programming

The next step is to design the part using computer-aided design (CAD) software. The CAD model should include all the necessary details, such as dimensions, contours, and features. Once the design is complete, the CAD data is imported into a CNC programming software, where the toolpaths are generated. Toolpaths are the instructions that tell the CNC machine how to move the tool to shape the part.

Step 3: Pre-Machining Check

Before machining the aluminum part, it’s important to perform a pre-machining check. This involves verifying the toolpaths, material thickness, and any other relevant parameters. It’s crucial to catch any potential errors during this step to avoid costly mistakes during the machining process.

Combination CNC Turn Mill Center Machining
CNC Lathe Machining

Step 4: Machining

The machining step involves loading the aluminum stock into the CNC machine and starting the cutting process. The CNC machine follows the preprogrammed toolpaths to shape the aluminum part. During the machining process, it’s essential to monitor the tool wear and tool temperature. If necessary, tool breaks or tool replacements may be required.

Step 5: Post-Machining Check

After the machining process is complete, it’s essential to perform a post-machining check. This involves inspecting the part for any defects, such as burrs, tool marks, or other unacceptable features. If any issues are found, the part can be reworked or scrapped depending on the severity of the issue.

Aluminum For Turned Parts

Step 6: Finishing and Assembly

Once the post-machining check is complete and the part is acceptable, the finishing process begins. This may involve polishing, deburring, or other surface treatment techniques to enhance the part’s appearance and/or performance. Once the finishing process is complete, the aluminum part can be moved to the assembly area for integration into the final product.


CNC turning aluminum parts is a precision machining process that requires careful attention to detail at every step of the process. By following these six steps outlined in this blog post, you can ensure that your aluminum parts are accurately manufactured and ready for their intended application. Remember to double-check all toolpaths, monitor tool wear, and perform thorough quality checks at every stage to ensure optimal results.

How to custom turned parts from China?

The Way to Choose a Chinese Custom Turned Parts Supplier

If you’re in need of custom turned parts, sourcing them from China can be a cost-effective and efficient solution. China is known for its robust manufacturing industry, with various suppliers and manufacturers offering high-quality and customizable products.

However, some may be hesitant about sourcing from China due to language barriers and concerns about the quality of the parts. But fear not! In this blog, we will guide you through the process of customizing turned parts from China, and why sourcing from a trusted supplier like Ming Xiao Mfg is the best choice for your business.

CNC Mill Turn Machining Service
CNC Mill Turn Machining Service

1. “Know Your Requirements”

The first step in customizing turned parts from China is understanding your specific requirements. This includes the dimensions, materials, and tolerances needed for your parts. Having a clear idea of what you need will help you communicate effectively with the supplier and ensure that your specifications are met.

2. “Choose a Reliable Custom Turned Parts Supplier”

Selecting a trusted supplier is crucial when sourcing turned parts from China. A reputable supplier like Ming Xiao Mfg has years of experience and a proven track record of delivering high-quality and reliable products. They also have a solid understanding of international standards and are well-equipped to handle any custom orders.

3. “Communicate Your Requirements”

Clear and effective communication is essential when dealing with a supplier from a different country. Make sure to communicate your requirements in detail to avoid any misunderstandings. Providing technical drawings or 3D models can also help the supplier understand your needs better.

4. “Consider the Material Options”

China offers a wide range of material options for turned parts, including aluminum, brass, steel, and plastic. Each material has its unique properties and advantages, so it’s crucial to choose the right one for your application. A reliable supplier will be able to advise you on the best material choice for your specific needs.

5. “Quality Control is Key”

Ensure that the supplier has strict quality control measures in place. A trustworthy supplier like Ming Xiao Mfg will have a quality control team that inspects the parts at every stage of the manufacturing process to ensure they meet your requirements. This will guarantee that you receive high-quality and accurate parts.

6. “Request Samples”

Before placing a large order, it’s always a good idea to request samples from the supplier. This will allow you to physically examine the parts and test them to see if they meet your expectations. It’s also an excellent opportunity to catch any potential issues and address them before placing a bulk order.

7. “Negotiate Terms and Pricing”

When it comes to pricing, it’s essential to have a clear understanding of the supplier’s cost breakdown. This will give you leverage during negotiations, and you can compare prices with other potential suppliers. It’s also crucial to discuss payment terms and delivery schedules before finalizing the deal.

8. “Have a Trial Order”

To further ensure the quality and reliability of the parts, it’s best to start with a trial order before placing a large order. This will provide you with a better understanding of the supplier’s capabilities and the quality of their work. If you’re satisfied with the trial order, you can proceed to place a bulk order.

Ming Xiao Mfg Worth Your Trust To Custom Turned Parts

In conclusion, customizing turned parts from China can be a smooth and straightforward process if you follow these steps. Ming Xiao Mfg, with its expertise and years of experience, is an ideal choice for sourcing custom turned parts.

We offer high-quality products, reliable communication, and competitive pricing, making them a preferred supplier for businesses worldwide. So, why not give us a try for your next turned parts order?

Finding the Best CNC Turned Parts Manufacturer

How to Finding the Best CNC Turned Parts Manufacturer?

Are you looking for a high-quality CNC turned parts manufacturer? Do you need precision and exactitude for the parts you require? It’s difficult to find the right manufacturer for your project, but with a bit of research and knowledge, you can find the perfect fit for you. In this blog, we’ll discuss how to find the best CNC turned parts manufacturer for your project.

CNC Turned Parts Custom Machining

1: Consider Experience and Expertise

When it comes to finding the right CNC turned parts manufacturer, experience and expertise are key. Check to see how long the company has been in business and ask for references. Look for certified quality management systems and ISO certifications. Make sure you read reviews and testimonials in order to get an idea of the company’s customer service and quality control processes.


2: Look for Value

It’s important to find a CNC turned parts manufacturer that can offer the best value for your money. Compare prices, delivery times, and quality standards to ensure you’re getting the best deal possible. Make sure you inquire about additional costs that may be incurred along the way, such as tooling and set up fees.


3: Get Technical

In order to assess whether a particular manufacturer is qualified to manufacture your parts, it’s important to ask specific technical questions. Find out what types of materials the manufacturer works with, and ask about machining capabilities. Ask about tolerance requirements and ask to look at the manufacturer’s CAD library and CNC machine shop setup.


4: Consider Geography

If time is of the essence, then you may want to consider geographical location when selecting a CNC turned parts manufacturer. Local companies that can quickly deliver your parts can be beneficial in a time crunch. On the other hand, if you have the luxury of time, it may be beneficial to go with an offshore manufacturer in order to get the best price.


When it comes to finding the right manufacturer for your CNC turned parts project, there are a few factors to consider. At the end of the day, it’s important to go with the manufacturer that can offer the best value while meeting your specific requirements. With a bit of research and knowledge, you can be sure to find the perfect fit for your project.

Introduce Ming Xiao Mfg For Your CNC Turned Parts

When you in need of precision CNC turned parts for your projects, Look no further! Ming Xiao Mfg, based in China, is your one-stop destination for top-notch turned parts machining services. With years of experience and cutting-edge technology, we deliver unrivaled quality and accuracy to meet all your requirements.

Our Turned Parts Machining Service:

At Ming Xiao Mfg, we understand the significance of precision in the manufacturing process. With our state-of-the-art machinery and skilled technicians, we are capable of machining turned parts with tight tolerances and intricate designs, ensuring each component fits seamlessly into your assembly.

Why Choose Us?

1. Superior Quality: We take pride in our commitment to excellence. Every turned part is meticulously inspected to ensure it adheres to the highest quality standards, delivering optimal performance and reliability.

2. Versatility: Our capabilities extend across various materials, including stainless steel, brass, aluminum, and more. No matter the complexity or size, we can craft turned parts that perfectly match your specifications.

3. Customization: Your unique requirements matter to us. Whether you have specific designs, dimensions, or finishing preferences, we work closely with you to create bespoke turned parts tailored to your exact needs.

4. Efficient Turnaround: With our streamlined processes and efficient workflows, we offer swift turnaround times without compromising on the quality of your turned parts.

5. Competitive Pricing: We believe that exceptional quality doesn’t have to come with a hefty price tag. Our cost-effective solutions make us the preferred choice for turning services.

Industries We Serve:

From automotive to electronics, medical to aerospace, our turned parts cater to a diverse array of industries. No matter your sector, we have the expertise to deliver precision turned parts that elevate the performance of your products.

Experience Excellence with Ming Xiao Mfg:

Experience the seamless combination of cutting-edge technology, skilled craftsmanship, and exceptional customer service with Ming Xiao Mfg. We go the extra mile to ensure your satisfaction, providing you with reliable and high-quality turned parts for all your projects.

Get in touch with us today to discuss your requirements and witness the precision and reliability that sets Ming Xiao Mfg apart as the go-to turned parts machining supplier from China.

CNC Turning: Equipment, Materials, Applications, and Prospects

CNC Turning: Equipment, Materials, Applications, and Prospects Of CNC Turning

CNC turning is a complex yet versatile machining process that is widely used in a variety of industries to produce precision parts and components. This article will provide an indepth look at the CNC turning process, as well as the equipment and materials used, surface treatments, and future prospects for the process, in addition to the expertise offered at Ming Xiao Mfg.

CNC Turning
CNC Turning

1.Redefining CNC Turning process

The machining process known as CNC (computer numerical control) turning is a popular choice in industries all over the world for its precise and efficient outcomes. A wide variety of materials can be machined with the help of CNC turning to produce the best specialty parts and components for a wide array of purposes. At Ming Xiao Mfg, we understand the unique capabilities of CNC turning and its potential for revolutionizing the machining industry.

2.Overview of CNC Turning

CNC turning is a subtractive process involving the use of a programmable lathe or other automated machine. CNC turning machines are capable of producing highly accurate parts and components by removing excess material from blocks of raw materials such as metals, plastics, and other materials. This type of machining is completed by a programmable precision turning tool that a skilled technician controls from a computer numerical control (CNC) console. CNC turning is often accomplished through a three- or four-axis machine, also known as multiaxis machining. The process is suitable for any material with a low rate of thermal expansion, such as aluminum, titanium, brass, stainless steel, copper, and polypropylene.

3.Different Types of CNC Turning Machines

CNC lathes are regularly used for the enhanced accuracy of turning operations. The more advanced CNC turning machines, including multitask and combination CNC machines, are capable of machining and turning an array of shapes, including squares, hexagons, and rounds. CNC turning machines are typically equipped with disc towers, spindles, coolant tanks, and other automated accessories. There is also a wide range of parts that can be produced with CNC turning, including nozzles, valves, bearings, screws, and other components.

CNC Turned Parts
CNC Turned Parts

4.Advantages of CNC Turning

A major advantage of CNC turning is that it is highly accurate and intricate. CNC turning allows for a high degree of accuracy when cutting materials into the chosen shape or geometry. This accuracy minimizes the risk of defects caused by human error. Turned parts are also able to meet defined design specifications with repeatable accuracy, making them particularly desirable for manufacturing in large batches. Additionally, the accuracy of CNC turning can produce a superior finish with tight tolerances.

5.Surface Treatments of CNC Turning

Surface treatments for CNC turned parts can be applied to enhance the appearance, increase the strength, or add other desired features. Multiple types of surface treatments are available for CNC turned parts, including anodizing, painting, powder coating, polishing, sandblasting, and plating. The surface treatments used to achieve the desired properties for a part often depend on the material used in the part’s production.

Finish treatments of CNC Turned Parts
Finish treatments of CNC Turned Parts

6.CNC Turning in Different Industries

CNC turning is used in a wide variety of industries, including aerospace, automotive, energy, agriculture, and consumer goods. CNC turning is useful in industries that require precise and intricate parts and components for various applications, such as engines, aircraft components, agricultural equipment, and medical devices. This type of machining is also utilized in a number of products, including valves, turbines, and bearings.

7.Prospects of CNC Turning

The prospects of CNC turning are expected to remain positive in the near future due to the demand for precision-machined parts and components. CNC turning can also present potential cost savings, as changes in the design can be quickly and easily implemented. As the technology and sophistication of CNC turning machines evolves, more efficient and accurate parts and components can be produced.

8.Expertise of Ming Xiao Mfg

At Ming Xiao Mfg, we specialize in precision CNC turning and have all the necessary know-how and tools to produce precisely machined parts and components. Our staff of machining experts is the best in the field, and we understand the intricacies of this manufacturing process. We uphold the highest quality standards and can provide services for custom orders of any size. Contact us today to learn more about our CNC turning services.

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Aluminum Turned Parts: A Comprehensive Overview From Start to Finish

As a manufacturer, you understand the importance of precision and quality in your production processes. One critical set of components that requires strict control and expertise is aluminum turned parts. To produce high-quality aluminum turned parts, you need to understand the materials, equipment, and techniques required from start to finish.

Aluminum Turned Parts
Aluminum Turned Parts

Commonly Used Aluminum Alloys for Turned Parts

When producing aluminum turned parts, manufacturers commonly use several grades of aluminum that are well-suited for machining and turning. The most popular options include:

  • 6061 aluminum alloy: This is a versatile, heat-treatable grade with medium strength. It has good machinability and corrosion resistance, making it suitable for intricate, complex parts.
  • 7075 aluminum alloy: For high-strength needs, 7075 is a good choice. Although more difficult to machine, it produces durable parts for structural applications where lightweight, high-strength properties are required.

To achieve the closest tolerances and best surface finishes, modern CNC turning centers and lathes are typically used. These computer-controlled machines can produce high volumes of parts with exceptional precision and repeatability.

The specific cutting tools and speeds/feeds will depend on the aluminum grade and final part requirements. In general, higher cutting speeds are needed for aluminum compared to steel. Special aluminum cutting lubricants and coolants are also commonly used to prevent overheating, reduce tool wear, and promote chip evacuation.

Post-processing, parts often undergo heat treatment to harden and strengthen the aluminum. They may also need deburring, sanding, and/or surface treatments like anodizing to improve corrosion resistance and wear properties or for esthetic purposes.

Finally, proper packaging is important to prevent surface damage during shipping and transport. Parts are usually separated with dunnage or placed in nesting trays and covered. Shock-absorbing, moisture-resistant packaging materials help ensure parts reach the customer in perfect condition, ready for their intended end use.

With the variety of aluminum grades and processing options available today, manufacturers can produce high-quality turned parts to suit virtually any commercial or industrial need. By following best practices and working closely with experienced suppliers, you can develop lightweight, precision-machined components to meet your most demanding product requirements.

Equipment Used to Machine Aluminum Turned Parts

To machine aluminum turned parts, certain equipment is required. The most commonly used are:

  • CNC lathes: Computer numerical control (CNC) lathes are automated lathes that can produce high volumes of precision turned parts. They use programmed commands to control the cutting tool. CNC lathes are used to perform turning, facing, boring, threading, grooving, chamfering and other operations.
  • Turret lathes: Turret lathes are manually operated lathes with a rotating turret that holds multiple cutting tools. They are more versatile than engine lathes but less automated than CNC lathes. Turret lathes are ideal for low to medium volume production.
  • Chuckers: Chuckers are small CNC lathes designed for high volume production of small diameter parts (typically under 2 inches). They provide quick changeover times and fast machining speeds.

The aluminum grades frequently used for turned parts are 2011, 2024, 6061 and 7075. These provide good machinability and mechanical properties. The parts then often undergo surface treatments like anodizing or powder coating to improve corrosion resistance and esthetics.

Proper packaging is important to prevent damage during shipping and storage. Turned parts are typically packaged in plastic bags, placed in partitioned boxes and surrounded by cushioning material like foam or cardboard. Desiccant packets may be added to control humidity.

With the right equipment, material selection, surface treatments and packaging, high quality aluminum turned parts can be produced efficiently while still maintaining tight tolerances and an attractive final appearance. The possibilities for customization and application are endless.

Surface Treatments and Coatings for Aluminum Turned Parts


Anodizing is an electrochemical process that converts the metal surface into a decorative, durable, corrosion-resistant, anodic oxide finish. The most commonly used anodize treatment for aluminum turned parts is Type II, which produces a clear finish allowing the natural aluminum shine through. Type III hard anodize penetrates deeper into the aluminum for increased durability.


Aluminum turned parts can be painted for color and additional protection. A conversion coating is first applied, followed by a primer, then a topcoat of paint. Conversion coatings like Alodine help the primer and paint adhere better to the aluminum surface. For the most durable finish, a two-part polyurethane paint should be used. Powder coating, where an electrostatic charge bonds dry powder to the aluminum, also produces an attractive durable finish.


Electroplating involves using an electric current to coat aluminum parts in a thin layer of metal. Common for aluminum hardware are nickel, chrome, zinc, and gold plating. Nickel provides a durable silver finish while chrome produces a shiny metallic finish. Zinc plating protects against corrosion and is often clear coated or dyed. Gold plating is mainly for appearance and protection in electronic applications.

To summarize, the surface treatments and coatings commonly used for aluminum turned parts include:

  • Anodizing (Type II clear, Type III hard)
  • Painting (conversion coating, primer, polyurethane topcoat)
  • Powder coating
  • Electroplating (nickel, chrome, zinc, gold)

The specific treatment used depends on the level of protection and desired finish required for the end application. Proper surface preparation like cleaning and degreasing is required for adequate adhesion and the best results.

Heat Treatment of Aluminum Turned Parts

Solution Heat Treatment

Solution heat treatment involves heating aluminum turned parts to a high temperature and then rapidly quenching them in a liquid medium like water or oil. This is done to increase the strength and hardness of certain aluminum alloys by precipitating hardening elements like magnesium and silicon out of solid solution.

The most common grades of aluminum that are solution heat treated are the 2xxx, 6xxx, and 7xxx series alloys. These alloys contain magnesium and silicon as the major alloying elements. By heating these alloys to a high temperature, the magnesium and silicon dissolve into the aluminum matrix. When the part is quenched, the magnesium and silicon precipitate out as fine particles, which hinders dislocation movement and increases strength.

Solution heat treatment requires precise control of both temperature and quench rate in order to achieve maximum strengthening. Parts are typically heated to temperatures between 480 to 520°C for 2xxx alloys and 510 to 550°C for 6xxx and 7xxx alloys. After soaking at the solutionizing temperature to allow for complete solute dissolution, parts are rapidly quenched in water or oil at a rate higher than 80°C per second.

Proper handling and packaging are required after solution heat treatment to avoid part warping. Parts should be cooled to room temperature, then aged at a lower temperature to further increase strength and stability. Additional surface treatments like anodizing can then be performed if desired for a protective oxide coating.

In summary, solution heat treatment of aluminum turned parts involves heating and rapid quenching to precipitate out solute elements, which strengthens and hardens the material. When performed properly on the appropriate aluminum alloys, this process can significantly enhance the mechanical properties and performance of finished parts. Care must be taken to properly handle, age, and finish parts after solution heat treatment.

Post-Machining Operations for Aluminum Turned Parts

Surface Treatments

Once machined, aluminum turned parts often require surface treatments to improve corrosion resistance, adhesion, and esthetic properties. Common surface treatments for aluminum include:

  • Anodizing – An electrochemical process that creates a durable, non-conductive aluminum oxide layer. Anodizing improves corrosion resistance and provides an attractive matte finish. Hard anodizing produces a thicker, more durable coating.
  • Powder coating – A protective polymer coating applied as a dry powder then cured under heat. Powder coating is highly durable and comes in a wide range of colors and finishes. It provides excellent corrosion protection for aluminum.
  • Painting – Liquid paints, like polyurethane or lacquer, are spray-applied then cured to form a protective coating. Painting aluminum requires proper surface preparation to ensure adhesion. Painted finishes can provide an attractive, custom appearance along with good protection.
  • Plating – Electroplating involves applying a metal coating, like zinc or chrome, to the aluminum surface. Zinc plating, or galvanization, protects against corrosion. Chrome plating provides a bright, shiny finish that is decorative but offers only moderate protection.
  • Conversion coating – Chemical treatments, like chromate conversion coating, produce a protective oxide layer. Conversion coatings are inexpensive but provide only short-term corrosion resistance. They are often used as a pretreatment prior to painting or powder coating.


Proper packaging is essential to prevent damage to aluminum turned parts during shipping and handling. Parts should be packaged in durable boxes, crates or cartons lined with padding like foam, bubble wrap or packing peanuts. More delicate parts may require custom nesting or compartmentalization within the package to prevent scratches. Desiccant packets can be included to prevent oxidation or water spotting during transit.

Inspection and Quality Control of Aluminum Turned Parts

Inspection of Raw Materials and Components

Upon receiving aluminum round bars, plates or other raw materials, inspect them to ensure they meet the required aluminum grade, dimensions, and surface finish specifications before starting any machining process. Check material certificates to verify the correct grade of aluminum, such as 6061 or 7075, was received. Measure key dimensions using calipers and micrometers to confirm they are within tolerance. Examine the surface for any scratches, dents or other imperfections that could affect final part quality.

Monitoring Machining Processes

Closely monitor all machining processes like turning, milling, drilling and threading to minimize waste and ensure high quality aluminum turned parts. Regularly measure key part features during machining using instruments like calipers, micrometers and pin gages to confirm they comply with the engineering drawings or 3D model. Inspect cutting tools like lathe bits and end mills for any damage or wear and replace as needed to achieve the desired surface finish and dimensional accuracy. Conduct in-process inspections for attributes like surface roughness, parallelism, concentricity and angularity.

Final Inspection and Part Approval

Once the machining of the aluminum turned parts is complete, conduct a final inspection to verify all attributes meet the required specifications before approving the parts for surface treatment or shipment to customers. Check all key dimensions, fits, and cosmetic attributes. Use instruments like optical comparators to check complex geometries. Ensure there are no burrs, scratches or other surface imperfections. Approved parts can then proceed for anodizing, powder coating or other surface treatments based on requirements. Packaging and storage procedures should also protect parts from damage prior to shipment.

Maintaining high quality standards through comprehensive inspection and quality control procedures at every step of the manufacturing process will result in high-quality aluminum turned parts that meet or exceed customer requirements. Thorough inspections and monitoring help minimize wasted materials and rework, reducing overall costs. Satisfied customers will come back for all their precision machined aluminum parts needs.

Packaging Requirements for Aluminum Turned Parts

Protective Packaging

To prevent damage during shipping and handling, aluminum turned parts require protective packaging. Soft, shock-absorbent materials should surround the parts to protect against scratches, dents, and dings.


As aluminum can corrode when exposed to moisture, a moisture-resistant barrier is essential. Polyethylene bags, polypropylene bags, or coated craft paper all provide an effective moisture barrier. Desiccants or drying agents placed inside the packaging can help absorb excess moisture.

Proper Labeling

Clearly label each package to properly identify the contents. Include details such as part number, quantity, material specifications, and any special handling instructions. This helps to avoid confusion, ensures the parts are used as intended, and aids in quality control.

Securing the Parts

Take measures to secure the parts within the packaging to prevent shifting during transport. Place padding, blocking, or separators between parts. For small parts, a compartmented organizer keeps each piece in place. Taping, strapping or heat-sealing the packaging closed also helps contain the contents.

Consider Part Features

Certain part features may require extra protection or have additional packaging needs:

  • Sharp edges: Dull sharp edges or cover/cap them to avoid tearing the packaging.
  • Thin sections: Place separators between thin sections to prevent bending or denting.
  • Machined surfaces: Use soft, lint-free materials that won’t scratch machined surfaces.
  • Anodized/coated finishes: Prevent marring of special finishes; indicate proper handling.
  • Irregular shapes: Custom compartmented organizers or form-fitted packaging may be required.

Proper protective packaging is essential for aluminum turned parts to arrive at their destination undamaged and ready for use. Following these guidelines will help ensure your parts make the journey securely.

Applications of Aluminum Turned Parts


Aluminum turned parts are commonly used in the transportation industry for aircraft, automobiles, trucks, and trains. Their lightweight, corrosion-resistant properties make them ideal for various vehicle components like:

  • Wheel spacers
  • Suspension components
  • Brake calipers
  • Engine parts (pistons, cylinders, valve covers, oil pans, etc.)
  • Transmission components
  • Fuel system parts

Industrial Machinery

Turned aluminum parts are also popular for use in industrial machinery and equipment where durability and precision are required, such as:

  • Pumps and valves
  • Compressors and blowers
  • Conveyor components
  • Robotics
  • Tooling fixtures
  • Milling and grinding machines

The strength-to-weight ratio and dimensional stability of certain aluminum grades are beneficial for high-performance machinery operating under stressful conditions.

Medical Equipment

Aluminum turned parts are commonly machined for components in medical devices and equipment like:

  • Imaging equipment (MRI, CT scanners, X-ray)
  • Dental equipment
  • Surgical instruments
  • Prosthetics
  • Mobility aids (crutches, walkers, wheelchairs)

Aluminum is valued for medical applications because it can be repeatedly sterilized without degradation and does not interfere with imaging or diagnostic equipment. Certain alloys provide the strength required for weight-bearing medical devices.

In summary, aluminum turned parts have a wide range of important applications across industries where lightweight, durable, and corrosion-resistant properties are required. With a variety of aluminum grades and secondary finishing options available, aluminum turned parts can be customized to suit the needs of any application.

Aluminum Turned Parts FAQs: Getting the Answers You Need

What aluminum grades are commonly used for turned parts?

The most commonly used aluminum grades for turned parts are the 6xxx and 7xxx series. These include:

  • 6061 – This is a versatile, heat-treatable grade with good corrosion resistance and machining properties. It is used for a wide range of turned parts like fittings, fasteners, and electronic components.
  • 7075 – This high-strength grade is ideal for turned parts requiring minimal deformation, like aircraft fittings and gears. It has good fatigue strength and average machinability.

What equipment is typically used to machine aluminum turned parts?

The primary equipment used includes:

  1. Lathes – Lathes spin the aluminum stock while cutting tools shape it into a symmetrical part. Lathes can produce turned parts with diameters from a fraction of an inch up to several feet.
  2. Automatic lathes – These are lathes that operate automatically once set up, enabling high volume production. They are commonly used to produce turned parts like fasteners, electronic components, and automotive fittings.
  3. Swiss-type lathes – These specialized lathes have a guide bushing that supports the workpiece, allowing them to produce small, high precision turned parts with tight tolerances, such as those used in the medical industry.

How are aluminum turned parts surface treated and packaged?

Aluminum turned parts typically receive surface treatments to improve corrosion resistance and durability. The most common methods are:

  • Anodizing – An electrolytic process that creates a durable, protective oxide layer. Anodizing is often dyed in different colors for esthetic purposes.
  • Painting – Applying a coat of paint, powder coat, or other sealant. This is a more economical surface treatment for aluminum turned parts.

Packaging requirements depend on the part size, quantity, and end use:

  • Bulk – Loose parts are packaged in bags, boxes, or drums. Common for small fasteners and electronic components.
  • Tray – Parts are secured in molded trays or carriers. Used when organization and part orientation is important.
  • Custom – Parts are mounted on boards or in bespoke fixtures to keep them secure during shipping and handling. Often required for precision turned parts.

Proper surface treatment and secure packaging help ensure aluminum turned parts reach customers in pristine, functional condition. With the right aluminum grade and machining process, turned parts can be produced to exacting standards for a wide range of applications.


As you’ve seen, the manufacturing of aluminum turned parts requires a significant amount of work and expertise. From choosing the right aluminum alloy and turning equipment to properly finishing and packaging the parts, each step in the process is crucial to producing high-quality components. By understanding the various grades of aluminum, cutting tools, and surface treatments available, you can determine the optimal combination for your specific application and requirements. While aluminum turned parts may seem simple on the surface, a huge amount of science, technology, and craftsmanship go into creating precision parts that meet the needs of today’s industries. With the right knowledge and skills, aluminum turned parts can be produced efficiently and economically.

The Characteristics Of CNC Turning SS304 Stainless Steel

CNC Turning SS304 Stainless Steel

Austenitic 304 stainless steel is a very common stainless steel with corrosion resistance, heat resistance, low temperature strength and overall mechanical properties. Widely used in food equipment, chemical equipment and nuclear industry equipment.

Austenitic 304 stainless steel has a relative machinability Kr of about 0.4, which is a relatively difficult material to process. The cutting force is large, the work hardening is large, the cutting area is high, and the local temperature is high. Therefore, the following items are required for turning.

CNC Turning SS304
CNC Turning SS304

1. High cutting force

Austenitic 304 stainless steel has low hardness ≤ Cr, Ni, Mn and other elements = 5, has 187 HbS and good plasticity (elongation after fracture) ≥ 40%, area ψ reduction ≥ 60%). The plastic deformation during cutting is large, and the strength can be maintained even at high temperatures (generally, the strength of steel decreases significantly when the cutting temperature rises). Under previous cutting conditions, the unit cutting force of austenitic 304 stainless steel is 2450mpa, which is more than 25% higher than that of 45 steel.

2. Hard work hardening

Austenitic 304 stainless steel is accompanied by obvious plastic deformation during processing, and the material lattice is severely deformed; at the same time, due to the stability defect of the austenite structure, the austenite part becomes martensite, and the impurities in the austenite During the cutting process, it is decomposed by heating to form a hardened layer on the surface, and the work hardening phenomenon is very obvious. After curing +B to 1500 MPa, the depth of the solidified layer is 0.1 to 0.3 mm.

3. The local temperature of the cutting area is high

Austenitic 304 stainless steel requires a large cutting force and is difficult to chip, so the operation by blade separation is also large. Under previous conditions, the cutting of stainless steel is about 50% higher than that of mild steel, generating more cutting heat. Austenitic stainless steels have poor thermal conductivity. The thermal conductivity of austenitic 304 stainless steel is 0. 321.5 w/m.k is one-third of the thermal conductivity of 45 steel. Therefore, the temperature of the cutting area is higher (generally speaking, the heat generated by the blade during the cutting process accounts for more than 70% of the cutting heat). A large amount of cutting heat is concentrated on the cutting area and the surface of the cutting tool, and the heat transferred to the tool is as high as 20% (only 9% when cutting common carbon steel). Under the same cutting conditions, the cutting temperature of austenitic 304 stainless steel 200~300°C higher than 45 steel.

4. Tools are easy to stick and wear

Due to the high temperature strength and high work hardening of austenitic stainless steel, the cutting load is large, and the affinity of austenitic stainless steel with tools and inserts is greatly improved due to the affinity of austenitic stainless steel with tools during cutting, resulting in bonding and diffusion phenomena. The result of tool sticking and wear. In particular, hard inclusions are formed by a small piece of cemented carbide, which promotes tool wear and causes edge collapse, which greatly shortens the service life of the tool and affects the surface quality of the machined parts.

stainless steel turning parts
stainless steel turning parts

Choose a reasonable CNC turning process

Due to the poor machinability of AISI 304 austenitic stainless steel, in order to improve productivity and processing quality, it is necessary to select appropriate turning, including cutting tool material, tool shape parameters, cutting parameters, and reasonable selection of cooling materials.

Tool material

Proper selection of tool material is critical to efficient machining of austenitic stainless steels. The reduction in turning performance of austenitic 304 stainless steel indicates that the selected cutting tool has high strength and toughness characteristics. At the same time, it has excellent wear resistance and has little affinity with stainless steel. At present, cemented carbide and high-speed steel are still the most commonly used cutting tool materials.

1. Carbide

Due to the high cutting force of difficult-to-cut materials and the short contact between chips and the lake surface, the cutting force is mainly concentrated near the edge, and edge collapse is prone to occur. Therefore, you can choose yg carbide tools for processing. The toughness, wear resistance, red hardness and thermal conductivity of yg cemented carbide are excellent. Suitable for processing austenitic stainless steel. You can also choose the YG 8 N tool. By adding nb, the cutting performance is 1~2 times higher than that of yg 8, and the effect is good in rough machining and semi-precision machining.

2. High speed steel

High-speed steel tools can effectively avoid the phenomenon that hard tools are easy to be damaged according to the size, shape and structure of the turning of stainless steel processed products. Conventional high-speed steel tools such as W 18 CR 4 V do not meet current machining conditions in terms of durability, new high-speed steel tools with excellent cutting performance such as high-speed steel (W 6 Mo 5 Cr 4 V 2 Al) and Nitrogen-containing high-speed steel (W 12 Mo 3 Cr 4 V 3 N).

Combination CNC Turn Mill Center Machining

Tool shape parameters

Reasonably determining the geometric parameters of the selected tool is an important factor to effectively improve the durability and processing effect of the austenitic 304 stainless steel tool. Generally speaking, knives must have large front and rear angles and sharp cutting edges.

1. Cutting parameters

AISI 304 stainless steel is usually a difficult-to-cut material, and the cutting parameters should be selected reasonably. Cutting parameters have a great influence on work hardening, cutting force, heat and processing efficiency. Cutting speed has a great influence on cutting temperature and tool durability. The second is the feed rate F, and the reverse feed rate AP has the greatest influence.

2. Cutting oil

Due to the insufficient cutting performance of austenitic 304 stainless steel, the selected cutting fluid has better cooling, lubricity and permeability (ie, anti-bonding performance). In addition, emulsifiers and vulcanized oils contain extreme pressure additives, such as S and Cl, which must be selected as much as possible.

Emulsion has good cooling properties and is mainly used for rough turning of stainless steel. Vulcanized oil has certain cooling and lubricating properties and low cost. It can be used for semi-finishing and finishing of stainless steel. Adding extreme pressure and oily additives to cutting fluids can significantly improve lubrication performance. Usually used for stainless steel finishing. The cutting fluid composed of a mixture of carbon tetrachloride, kerosene and oleic acid greatly improves the permeability of cooling lubricating oil, and is especially suitable for the finishing of AISI 304 austenitic stainless steel. Through the large cutting heat of austenitic stainless steel, methods such as spray cooling and high-pressure cooling can be performed to improve the cooling effect.


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What Is CD Pattern & How To Use CNC Turning CD Pattern?

CD Pattern

CD Pattern
CD Pattern

CD pattern is an effect similar to the pattern of CD discs obtained by removing material on the metal surface by using a sophisticated CD pattern machine. Its pattern spacing is determined according to the appearance and size of the product. (What is CD pattern, the industry has not yet a clear definition) It is generally recognized in the industry that CD pattern is a relatively high-grade surface treatment process for metal surfaces.

Machining characteristics

There are many manufacturers and product development engineers with CD pattern in real life. After seeing the workpiece with CD pattern on the surface, they may say that the surface treatment process of CD pattern is easy to make, but it is impossible to do it by hand. Well, I made many samples, but I can’t succeed, why? Because there are technical skills in it, that is to say, it requires a certain technical content to do a good job in the CD grain surface treatment process. Next, we will introduce the CD pattern processing, share it with you, and hope to get advice from all colleagues.

CD Pattern Turned Part 4
CD Pattern Turned Part

How to process CD pattern with CNC lathe?

CD pattern is an effect similar to the pattern of CD discs obtained by removing material on the metal surface by using a sophisticated CD pattern machine. Its pattern spacing is determined according to the appearance and size of the product. (What is CD pattern, there is no clear definition in the industry at present) It is generally recognized in the industry that CD pattern is a relatively high-grade surface treatment process for metal surfaces.

CD Pattern Turned Part 2
CD Pattern Turned Part

High quality CD pattern processing must have the following five elements:

1. High precision CD texturing machine;

2. Scientific products processing fixture;

3. Well trained process operators;

4. Select reasonable cutting tools;

5. Correct cooling scheme.

1. The high-precision CD pattern machine is developed by us in the process of long-term development of CD pattern, according to the accumulated experience in practice. This machine is suitable for processing all kinds of hardware: aluminum, copper, steel, mobile phone case, digital camera shell, MP3 shell, name plate, etc.

2. Scientific product processing fixture. We have a number of professional engineers who have been engaged in fixture development for many years. According to the different shapes of products, they will scientifically design the fixture suitable for product CD pattern processing from the perspectives of cutting, dynamic balance, material and thermal effect, so as to ensure the qualified rate of product processing and excellent CD pattern processing effect.

3. Skilled operators. We have a number of high-quality process operators, they will fully study the product material, determine the process, and make process operation instructions before the product surface treatment of CD pattern, so as to ensure the quality stability of the CD pattern surface treatment process.

Reasonable tool selection. It is very important to select a reasonable cutting tool for the surface treatment process of CD pattern. For example, if the cutting tool is unfavorable, burr will be produced. If the angle of the cutter is not right, it will directly affect the surface treatment effect of the product CD pattern.

5. Correct cooling scheme. If our cooling scheme is wrong when we do the product surface CD grain treatment, even if we choose the right parameters such as grain spacing and tool. The CD pattern will not achieve the desired effect. Therefore, the correct cooling scheme plays an important role in the surface treatment of CD pattern.

Ming Xiao Mfg Custom Decorative CNC Turning Parts with CD pattern for worldwide customers.

Introduction to several deep drawn parts of different materials in stamping parts

Introduction to several deep drawn parts of different materials in stamping parts

Stamping parts include stainless steel parts, copper and aluminum parts, sheet metal parts, bending parts, stretching parts, etc. Then, what are the characteristics of stretching parts made of different materials? The stamping parts processing manufacturer will briefly introduce you;

Low carbon steel tensile stamping parts

Low carbon steel has the characteristics of excellent formability, stable molding size, high strength, light weight, etc. (depending on the material grade), the disadvantage is that the corrosion resistance is relatively low, and post-treatment protection such as electroplating is required. Commonly used in various parts in automobile manufacturing, especially high-strength mechanical parts;

Stainless Steel Stamping Parts

Stainless steel tensile parts have the characteristics of high strength, light weight, good wear resistance, high corrosion resistance, etc. The tensile parts of this material do not need electroplating protection. Suitable for heat treatment, often used in fuel supply system, braking system, exhaust system, oxidation sensor and decorative parts in automobile manufacturing.

Aluminum alloy stretch stamping parts

The characteristics of aluminum alloy tensile parts are: light weight (almost 1/3 of low carbon steel), high strength, non-magnetic, stainless and rusty, can be anodized to prevent corrosion, suitable for heat treatment, etc. Commonly used in bulk devices, energy storage devices (such as batteries), beverage containers and pharmaceutical industries in automobile manufacturing and other industries;

Copper alloy tensile parts

Copper alloy drawing parts have the characteristics of stable molding size, corrosion resistance, good ductility, and easy welding. The disadvantage is that they are easy to oxidize. Since the price of copper alloy materials is relatively expensive, in terms of material utilization, waste should be reduced, and waste can be used if necessary. recycle and re-use.

What material steel is used for bolts of grade 8.8, grade 10.9, and grade 12.9?

What material steel is used for bolts of grade 8.8, grade 10.9, and grade 12.9?

Grades 8.8, 10.9, 12.9, and bolts are all made of high-strength steel.

8.8 grade bolts commonly use 35# steel or 45# steel; 10.9 grade bolts use 40Cr, 35CrMo, 42CrMo; 12.9 grade bolts use 35CrMo, 42CrMo. The material of high-strength bolts is 35# steel or other high-quality materials, which are heat-treated after being made to improve the strength. High-strength bolts can withstand larger loads than ordinary bolts of the same specification.

High-strength bolts related introduction:

High-strength bolts are made of high-strength steel and require a large pre-tightening force. It uses a special wrench to tighten the nut, so that the bolt generates a huge and controlled pre-tension force. , the same amount of pre-pressure is generated on the connected parts. Under the action of pre-pressure, a large friction force will be generated along the surface of the connected parts.

The high-strength bolt connection relies on the friction between the contact surfaces of the connectors to prevent them from sliding each other. In order to make the contact surfaces have sufficient friction, it is necessary to increase the clamping force of the components and increase the friction coefficient of the contact surfaces of the components. . The clamping force between the components is to apply pre-tension to the bolts, and the bolts must be made of high-strength steel.

Ming Xiao Mfg Custom Nonstandard bolts & steel turned parts with grade 8.8, grade 10.9, and grade 12.9.

6 Tips You Need To Know About CNC Turning

6 Tips You Need To Know About CNC Turning


The machining process of CNC lathes is similar to that of ordinary lathes, but since CNC is a mold clamping process, all turning processes are completed automatically and continuously, so be sure to pay attention to the following points:

CNC turning & CNC milling

1. Reasonable selection of cutting parameters

The three main factors for efficient metal cutting are the material being machined, the cutting tool and the cutting conditions. They determine machining time, tool life and machining quality. A cost-effective machining method must be a reasonable choice of cutting conditions.

The three components of cutting conditions, cutting speed, feed and depth of cut, directly lead to tool damage. As the cutting speed increases, the temperature of the tool tip increases, resulting in mechanical, chemical and thermal wear. Tool life is halved as cutting speed increases.

The relationship between feed conditions and tool backside wear occurs within a very narrow range. However, the feed rate is large, the cutting temperature is high, and the back wear is large. The effect on the tool is less than the cutting speed. Although the effect of depth of cut on the tool is less than cutting speed and feed rate, the hardened layer of the cutting material can also affect tool life when cutting at shallow depths of cut.

The user should select the cutting speed according to the material, hardness, cutting conditions, material type, feed rate, cutting depth, etc.

Appropriate processing conditions are selected based on these factors. Regular and constant wear and a long service life are ideal conditions.

In practice, however, the choice of tool life is related to tool wear, workpiece dimensional variation, surface quality, cutting noise and process heat. When determining the processing conditions, research should be carried out according to the actual situation. Harder inserts and coolants are available for difficult-to-machine materials such as stainless steel and heat-resistant alloys.

2. Reasonable selection of tools

(1) When roughing, choose a tool with high strength and durability to meet the requirements of large back and large feed during roughing.

(2) When turning, please choose high-precision and durable tools to ensure the required machining accuracy.

(3) Use the machine tool and the machine tool to clamp the blade as much as possible to reduce the tool change time and facilitate tool setting.

3. Reasonable selection of fixtures

(1) Try to use ordinary fixtures to clamp the workpiece and avoid using special fixtures.

(2) The positioning datum of the parts is matched to reduce the positioning error.

4. Determine the processing route

The machining route refers to the movement path and direction of the tool relative to the part being machined on the CNC machine tool.

(1) It must be able to ensure the machining accuracy and surface roughness requirements.

(2) Make the processing route as short as possible to reduce the idling time of the tool.

5. The relationship between processing route and processing capacity

At present, when CNC lathes have not yet reached general use, the excess allowance of blanks, especially those containing forged and cast hard cortex, must be placed and processed on ordinary lathes. If you need to use a CNC lathe for processing, you should pay attention to the flexible arrangement of the program.

6. Fixture Mounting Points

At present, the connection between the hydraulic chuck and the hydraulic clamping cylinder is done through a tie rod. The clamping points of the hydraulic chuck are as follows: first remove the nut and pull tube of the hydraulic cylinder by hand, then pull it out from the rear end of the main shaft, and then remove the clamp fixing screw by hand. , and then remove the chuck.

Tool wipers are short blades parallel to the tool tip, ground behind the tool blade in the direction of a small deflection angle. Mainly used for primary and secondary cuts after cutting, like removing burrs and other scars during finishing. The purpose is to improve the surface roughness of the workpiece, mainly used for finishing tools.

Ming Xiao Mfg is a professional CNC turning parts supplier from China Ningbo, we offer high quality CNC turned parts with low prices, if you need any cnc turning custom service in China, welcome send us a inquiry, we will give you positive response in 48hrs.

Difficulties and Solutions of Stainless Steel Parts CNC Machining

Difficulties and Solutions of Stainless Steel Parts CNC Machining

We should all encounter the same problem when we process (CNC turning & milling) stainless steel parts: stainless steel parts are difficult to process; as everyone knows, the reason for the difficulty in machining is also the choice of tools. Let me tell you what materials the tools are made of, and how difficult it is to process stainless steel. A few reasons and solutions:

Precision Swiss Type CNC lathe Turned Parts

First. the choice of cutting tools:

For turning stainless steel parts on an automatic lathe, the commonly used carbide tool materials are: YG6, YG8, YT15, YT30, YW1, YW2 and other materials; commonly used high-speed steel tools are: W18Cr4V, W6M05Cr4V2AL and other materials.

Second. the selection of the geometric angle and structure of the tool is also particularly important:

Rake angle: Generally, the rake angle of the turning stainless steel tool is 10°~20°.

Rear angle: generally 5°~8° is more suitable, and the maximum is less than 10°.

Blade inclination: generally choose λ to be -10°~30°.

The surface roughness of the cutting edge should not be greater than Ra0.4~Ra0.2.

Combination CNC Turn Mill Center Machining

Third. The difficulties of processing stainless steel parts are as follows:

1. The machining hardness causes the tool to wear quickly and it is difficult to remove chips.

2. Low thermal conductivity causes plastic deformation of the cutting edge and faster tool wear.

3. The built-up edge is likely to cause small pieces of powder to stay on the cutting edge and cause a bad machined surface.

4. The chemical relationship between the tool and the material to be processed causes work hardening and low thermal conductivity of the material to be processed, which not only easily causes unusual wear, but also causes tool chipping and abnormal breakage.

Fourth, the solutions to the processing difficulties are as follows:

1. Use a tool with high thermal conductivity.

2. Sharp cutting edge line: The chip breaker has a wider margin, which can reduce the cutting pressure, so that the chip removal can be well controlled.

3. Appropriate cutting conditions: Improper machining conditions will reduce the service life of the tool.

4. Select the appropriate tool: the stainless steel tool should have excellent toughness, and the cutting edge strength and the bonding force of the coating film should also be relatively high.


Ming Xiao Mfg is a professional CNC turning & milling stainless steel parts manufacturer from China Ningbo, We are very experienced in processing stainless steel turned  & milled parts and advantages,we have automatic lathes, CNC lathes, multiple spindle turn-mill combination CNC lathe, can quickly making samples, our stainless steel parts with very smooth surface, precision & roughness are very good. the same price our quality than others, the same quality our price is lower than others.

7 clamping methods to help you solve turning eccentric parts!

Do you know what an turning eccentric part is?

Eccentric parts generally named eccentric axis,eccentric sleeve shafts,eccentric sleeves,eccentric screws, eccentric studs.

Here we are talking about CNC turning eccentric parts.

In mechanical transmission, rotary motion becomes reciprocating linear motion or linear motion becomes rotary motion, which is generally accomplished by eccentric shaft or crankshaft. The eccentric shaft is that the axis between the outer circle and the outer circle of the workpiece is parallel and does not overlap. The eccentric sleeve is that the axes of the outer circle and inner }L of the workpiece are parallel but not coincident, and the distance between these two axes is called “eccentricity”.

eccentric turning parts

For the method of turning eccentric workpieces, different clamping methods should be adopted according to the different quantities, shapes and precision requirements of the workpieces, but it should be ensured that the axis of the eccentric part to be processed coincides with the axis of rotation of the lathe spindle. The common clamping methods for turning eccentric parts are as follows.

eccentric CNC turning

(1) Turning an eccentric workpiece with a four-jaw single-action chuck

This method is suitable for eccentric workpieces with small T eccentricity, low precision requirements, short length and small number.

(2) Turning an eccentric workpiece with a three-jaw self-centering chuck

This method is suitable for eccentric workpieces with large quantities, short lengths, small eccentric distances and low precision requirements. When clamping the workpiece, a shim should be added to one of the three-jaw self-centering chucks.

(3) Turning eccentric workpieces with double chucks

This method is suitable for machining eccentric workpieces with short length, small eccentric distance and large quantity. Before processing, the eccentricity should be adjusted first. The pipe thread lathe is firstly clamped on the three-jaw self-centering chuck with a processed mandrel, and then corrected; the pipe thread lathe then adjusts the four-jaw single-action chuck to offset the center of the mandrel by the eccentricity of the workpiece. ; Pipe thread lathe can clamp the workpiece for processing after removing the mandrel.

The advantage of this method of pipe thread lathe is that it only needs to correct the eccentricity once in a batch of workpieces, but the disadvantage is that the two chucks overlap and the rigidity is poor.

(4) Turning an eccentric workpiece with a faceplate

This method is suitable for machining eccentric hole workpieces with short workpiece length, large eccentric distance and low precision requirements.

Before machining the eccentric hole, first process the outer circle and both ends of the workpiece to the requirements, draw the position of the eccentric hole on the end surface, and then clamp the workpiece on the faceplate evenly with the pressure plate. Tight and ready for turning.


(5) Turning an eccentric workpiece with an eccentric chuck

This method is suitable for processing more precise partial L-I parts such as short shafts, discs and sleeves. The advantage of the pipe thread lathe is that it is convenient for clamping, can ensure the processing quality, and can obtain high precision and strong versatility.

(6) Turning eccentric workpieces with two centers

This method is suitable for machining long eccentric workpieces. Before processing, the main center hole of the center point and the center hole of the eccentric point should be drawn at both ends of the workpiece, and the center hole should be machined on the pipe thread lathe, and then the front and rear centers can be used for turning.

If the eccentric distance of the eccentric shaft is small, it may interfere with the main center when drilling the eccentric center hole. When processing pipe thread lathes, the blank can be turned into a smooth shaft first, then the center holes at both ends are turned to the length of the workpiece, and then the eccentric center hole line is drawn, the eccentric center hole is drilled, and the eccentric shaft is turned.

(7) Turning eccentric workpieces with special fixtures

This method is suitable for eccentric workpieces with high machining accuracy requirements and large batches.

eccentric turning parts

Before machining, the corresponding eccentric shaft or eccentric sleeve should be processed according to the eccentric distance on the workpiece, and then the workpiece should be placed on the eccentric sleeve or eccentric shaft for turning.

Do you have turning eccentric parts need custom produce in China? welcome send inquiry to us!

Keyword: China CNC turning Factory

What is turned Parts?

What is turned Parts?

Turned parts is a kind of parts that is processed by a cutting on a lathe. The shape and size of the blank are changed by the rotary motion of the workpiece and the linear or curvilinear motion of the tool, and it is processed to meet the requirements of the drawing.

Turning is a method of cutting a workpiece on a lathe using the rotation of the workpiece relative to the tool. The cutting energy of turning is mainly provided by the workpiece rather than the tool.

Turning is the most basic and common cutting method and plays a very important role in production. Turning is suitable for machining revolving surfaces.

Most workpieces with revolving surfaces can be processed by turning methods, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, end faces, grooves, threads, and rotary forming surfaces.

The tools used are mainly turning tools. The accuracy of turning is generally IT11-IT7, some can reach IT6, and the surface roughness Ra can reach 12.5-08um.

The parts processed by turning are called turning parts, and there are many types of turning parts, which are famous for hard turning to maintain the thermal stability of the parts.

Swiss Type CNC lathe Turned Parts

What are the characteristics of turning processing?

Turned parts processing, that is, lathe cutting, is an integral part of machining. Turning is mainly to use turning tools to turn rotating workpieces. Drills, reamers, reamers, taps, dies and knurling tools can also be used in turning. Turning is mainly used for machining shafts, discs, sleeves and other workpieces with rotating surfaces. It is the most widely used type of machine tool in machinery manufacturing and repair shops.

Turning is generally divided into roughing and finishing, including semi-finishing.Roughing strives to use a larger depth of cut and larger feed to improve turning efficiency without reducing the cutting speed, but the machining accuracy is only Rα20~10 microns; semi-finishing and finishing are as much as possible.

Large depth of cut and small feed to improve turning efficiency, the machining accuracy is Rα10~0.16 microns. High-precision lathe machining of non-ferrous metal parts by diamond high-speed precision turning, the machining accuracy can reach IT7~5 grades, and the surface roughness Rα is 0.04~0.01 microns, which is called “mirror turning”.

If the cutting edge of the diamond turning tool is processed into a concave and convex shape of 0.1~0.2 microns, the turning surface will produce very small and neatly arranged concave and convex stripes, which will show a brocade-like luster under the diffraction of light, which can be used as a decorative surface. This turning is called “Rainbow Turning”.

CNC Turning & Milling Services

In turning processing, if the speed ratio of the blade (the blade speed is usually several times the rotation speed of the workpiece) rotates in the same direction as the workpiece when the workpiece rotates, the relative motion trajectory of the blade and the workpiece can be changed, and the processed section is a polygon (triangle). , square, angular and hexagonal, etc.) workpieces. When the tool is longitudinally fed, when the tool holder rotates relative to the workpiece, the tool holder performs periodic radial reciprocating motion, so that cam surfaces or other non-circular sections can be processed. On the shovel tooth lathe, the flank of the teeth of some multi-tooth tools (such as forming milling cutters, gear hob cutters) can be called “shovel back” according to a similar working principle.

It is easy to ensure the positioning accuracy of each workpiece machining surface;

Requirements for easy guarantee of coaxiality:

A chuck is used to mount the workpiece, and the rotation axis is the rotation axis of the main shaft of the lathe.

The front and rear tops are used to install the workpiece, and the rotating shaft is the center line of the two tops.

It is convenient to ensure the verticality of the end face and the axis, and the axis and the workpiece can be rotated through the lateral slide guide rail.

The cutting process is relatively stable, avoiding inertial force and impact force, allowing the use of a larger cutting amount, and the cutting speed is fast, which is conducive to improving production efficiency.

Suitable for finishing of non-ferrous metal parts:

When the surface roughness of the non-ferrous workpiece is required to be low, it is not suitable for grinding, but turning or milling is required. The refined car is machined with diamond turning tools to achieve high quality.

The tool is simple and easy to operate: turning, sharpening, and easy installation.

Ming Xiao Mfg provide We offer a variety of turning methods, such as conventional Lathe, Automatic Lathe, CNC Lahte, Swiss Type Lathe, Turn Mill Combination CNC lahte… sastisfied customer’s high quality or low cost request.

The Basic Process Of Stamping

The Basic Process Of Stamping

Stamping is a production process that uses the power of conventional or special equipment to directly force and deform the metal sheet in the mold, so as to obtain product parts with certain shape, size and performance.


Sheet Metal Stamping Process
Sheet Metal Stamping Process


Sheet metal, stamping dies and equipment are the three elements of processing. Cold stamping is a method of cold deformation of metal. Therefore, commonly known as cold stamping or sheet metal stamping, referred to as stamping. It is one of the main methods of metal and plastic processing (or pressurization), and also belongs to the material forming engineering technology.

Stamping process sequence (blanking, cutting, trimming, tongue cutting, cutting, flaring, punching, punching, notch, center hole punching, fine blanking, continuous mode, single operation mode, combined punching, pressing Edge, embossing, forming) refers to the sequence of each process in the stamping process. The sequence of stamping process should be determined according to the requirements of workpiece shape, dimensional accuracy, process deformation law and material properties.


progressive die stamping workshop
progressive die stamping workshop


Generally follow the following principles:

(1) For stamping parts with holes or gaps, a single-process model is selected, and the holes or gaps are generally punched first. When selecting a progressive die, blanking is arranged as the last process.

(2) If the workpiece position is close and the size is two holes, the big hole should be punched first and then the big hole should be punched to avoid punching the material in the big hole and causing the hole to deform.

(3) For bending parts with holes, under normal circumstances, it can be bent first and then punched to simplify the mold structure. When the hole is located in the bending deformation area or close to the deformation area, and the hole has a benchmark and has high requirements, it should be bent first and then punched.

(4) For deep drawn parts with holes, generally deep drawing and then punching. When the position of the hole is at the bottom of the workpiece and the dimensional accuracy of the hole is not high, the hole can be punched first and then drawn, which is conducive to the deformation of the drawing and reduces the number of times of drawing. above

(5) Arrange the order of the bending migration trend of the material after the bending of the bending part from the material deformation angle and bending angle, usually the outer angle should be bent

(6) For complex rotor drawing parts, the drawing dimensions are large, and generally appear in the form of small sizes after drawing first. For complex rotors, the drawing size should be drawn after drawing for small size, and after drawing for large size outline.

Want to custom metal stamping parts?

If your are finding metal stamping parts custom service, please contact us!
You just need it, I just happen to be professional.

Talking About Swiss Type CNC Lathe

Swiss type CNC lathes go popular in precision machining in recent years and many manufacturers choose CNC Swiss-type machines in the production. What is a Swiss lathe and how does Swiss lathe work? Get into the article and make the choice of whether you should utilize a Swiss machining facility. We’ll also explore the difference between Swiss turning and conventional turning.

What is Swiss type CNC lathe?

Swiss type CNC lathe – the full name of the center walking CNC lathe, also known as the spindle box mobile CNC automatic lathe, economical turning and milling compound machine tool or slitting lathe. It belongs to precision machining equipment, which can complete compound processing such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch processing of precision hardware and special-shaped shafts.

Swiss Type CNC Lathe

The History of Swiss type CNC lathe:

The first Swiss type CNC lathe machine appeared shortly after the collet chuck was patented when is in the 1870s. Swiss type machines started to be used in lots of other industries around the 1960s and the first CNC Swiss were released in the 1970s. With the development of machines and tools, massive improvements are made to the design of Swiss lathes, gradually, they are used extensively for the production of parts in various fields.

A Swiss style lathe is a type of machine that allows the part to move in the z-axis while the tools keep stationary. The bar stock is held by the collet that is recessed behind the guide bushing and will not directly be exposed to the lathe bed and the tooling, so the material can be turned within the machine rapidly and tightly, this eliminates the deflection and increases the accuracy. Compared to conventional machining, Swiss machining offers lots of benefits.

Swiss Type CNC Lathe processing

Swiss Turning vs Conventional Turning – Difference Between Swiss Lathe and Conventional Lathe:

Compared with CNC lathes, the Swiss type CNC lathe has a qualitative leap in processing efficiency and processing accuracy. Due to the use of two-axis arrangement of tools, the processing cycle time is greatly reduced. The table overlap function, the thread chip effective axis movement overlap function, and the direct spindle indexing function during secondary machining can shorten the idle time. The cutting tool has always been processed at the clamping part of the spindle and the workpiece, which ensures the constant processing accuracy.

1. Headstock. Conventional lathes feature fixed headstocks, the bar stock is clamped in a collet or chuck which will extend to the enclosure of the machine or it will be supported on the one end with a tailstock, while Swiss lathes have movable headstocks.

2. Guide bushing. In conventional turning, the workpiece is stabilized in the collet of the main spindle, which is not suitable for long parts due to the deflection of the material, while during Swiss machining, the collet that holds the material can slide along the headstock behind the guide bushing, the cutting tool can operate near the guide bushing, this configuration can prevent deflections and achieve desired tolerances, whether the piece is how long.

3. Capability. Conventional lathes usually feature 3 or 4 axes and not capable of machining a turned part in a single cycle. While modern Swiss-style lathes feature 5-axis control or more axes, and can perform multiple operations in a single machining cycle.

4. Cycle time. Swiss automatic lathes reduce cycle time, especially for complex components.

5. Coolant. In conventional turning, water is often used as a coolant liquid, while in Swiss machining, oil is applied.

6. Programming. The offset programming of the Swiss-style lathe is the opposite compared to the conventional lathe. For turning longer lengths or drilling deeper holes, Z-axis on the Swiss machine requires a “plus” offset while traditional lathes require a “minus” offset.

At present, the maximum processing diameter of the Swiss type CNC lathe on the market is 32mm, which has a great advantage in the precision shaft processing market. This series of machine tools can be equipped with an automatic feeding device to realize fully automatic production of a single machine tool and reduce labor costs and product defect rates. It is very suitable for mass production of precision shaft parts.

Swiss Type CNC Lathe machining brass part

Features and advantages of Swiss type CNC lathe:

(1) Shorten the product manufacturing process chain and improve production efficiency. Swiss type CNC Lathe Turn-milling composite machining can realize all or most of the machining processes in one loading, thus greatly shortening the product manufacturing process chain. In this way, on the one hand, the production auxiliary time caused by the change of the loading card is reduced, and at the same time, the manufacturing cycle and waiting time of the tooling and fixture are also reduced, which can significantly improve the production efficiency.

(2) Reduce the number of clamping and improve the machining accuracy. The reduction in the number of card loadings avoids the accumulation of errors due to positioning fiducial conversions. At the same time, most of the turning-milling composite processing equipment has the function of online detection, which can realize the in-situ detection and precision control of key data in the manufacturing process, thereby improving the processing precision of products.

(3) Reduce the floor space and reduce the production cost. Although the price of a single turn-milling compound processing equipment is relatively high, due to the shortening of the manufacturing process chain and the reduction of equipment required for the product, as well as the reduction of the number of fixtures, workshop area and equipment maintenance costs, it can effectively reduce the overall fixed assets. The cost of investment, production operation and management.

Swiss Type CNC Lathe Machined Precision CNC Turned Parts
Swiss Type CNC Lathe Produced Precision Steel & Brass Parts

Design Features:

Since the structure of the Swiss type CNC lathe is different from that of the traditional CNC lathe, the processing efficiency and machining accuracy of the Swiss type CNC lathe are higher than those of the CNC lathe.

The machine adopts two-axis arrangement of tools. This design greatly saves the processing cycle time. By shortening the tool exchange time between the arrangement of tools and the opposite tool table, the overlapping functions of multiple tool tables and effective axis movement of thread chips are realized. , The direct spindle indexing function during the secondary processing shortens the actual and empty travel time.

In the machining process of the spindle and the workpiece clamping part, the cutting tool has always played a very important role, which provides a strong guarantee for the constant machining accuracy. As far as the Swiss type CNC lathe market is concerned, 32mm is its maximum processing diameter, which makes the Swiss type CNC lathe have a great advantage in the precision shaft processing market.

This series of machine tools can also be equipped with an automatic feeding device to realize fully automatic production of a single machine tool, reducing labor costs and defective products in the production process, and can be used to produce large quantities of precision shaft parts.

If you want to custom precision CNC turning parts suit to Swiss type CNC lathe to machining, pls feel free contact us, we shall prive our lowest price to you.

What is CNC Turn Mill Center Machining?

What is CNC Turn Mill Center Machining?

Then with the increasing number of types of CNC lathes, the names of many lathes gradually become difficult to understand. Next, let’s understand what is CNC turning and milling. Before understanding CNC turning and milling, we must first understand it separately. CNC lathe and CNC milling machine, see what kind of difference they have before.


CNC turning & CNC milling

A CNC lathe refers to a machine tool that mainly uses a CNC lathe tool to turn a rotating workpiece. Generally, it means that the tool of the lathe is fixed at a specific position on the machine tool, and the workpiece rotates along the axis under the clamping of the fixture, and is cut when it is close to the knife edge, so it is mainly suitable for processing shafts, discs, sleeves and Other workpieces with a reversed appearance are the most widely used type of machine tools in machine manufacturing and repair shops.

Common CNC milling machines and drilling machines and other rotary processing machines are derived from CNC lathes. Its processing principle is that the workpiece is rotating and the tool is fixed.

CNC milling machine refers to a machine tool that mainly uses milling cutters to process various surfaces on the workpiece. Its performance is that the rotary motion of the milling cutter is the main motion, and the workpiece and the milling cutter can move as the feed motion. That is to say, its object is fixed at a certain position of the machine tool, and the milling cutter rotates at a high speed under the clamping of the fixture. When touching the workpiece, it can process planes and grooves on its surface, and can also process various curved surfaces, gears and other CNC milling machines.

It is a machine that uses a milling cutter to mill a workpiece. It can process planes (horizontal planes, vertical planes), grooves (keyways, T-shaped grooves, dovetail grooves, etc.), toothed parts (gears, spline shafts, chains, etc.) Round shape, spiral surface (thread, spiral groove) and various curved surfaces. In addition, it can also be used to process the surface of the reversed body, the inner hole and cut off operations, etc. Because of the multi-tool intermittent cutting, the productivity of the CNC milling machine is Higher, the processing principle of CNC milling machine is that the workpiece is fixed and the tool is rotating.

Combination CNC Turn Mill Center Machining

As the name implies, CNC Turn Mill Center Machining is a composite machine tool that includes all the functional characteristics of CNC lathes and CNC milling. Its functions include turning and milling, turning and grinding, and milling and grinding. The purpose of the composite is to make a machine The machine tool has multiple functions. It can complete multiple tasks in one clamping and improve the processing efficiency and processing accuracy.

Because it combines the characteristics of the CNC lathe into one machine, it greatly reduces the floor space and reduces the rent and other funds. cost. Although the unit price of CNC turning and milling is relatively high, because it can shorten the manufacturing process chain and the number of fixtures, workshop area and reduce equipment maintenance costs, it can also effectively reduce the overall fixed assets from the perspective of enterprise investment. Invest, significantly reduce the cost of production operations and management of personnel and equipment.CNC turn mill center machining become very popular nowdays.

Advantages of CNC turn mill center machining?

The CNC turning and milling compound lathe is the fastest growing and most widely used CNC equipment among the CNC lathe compound machining lathes. Compounding of lathe processing is one of the important directions for the development of CNC machine tools. The purpose of compounding is to make a lathe with multi-functionality, which can complete multiple tasks in one clamping, and improve the processing power and processing accuracy.

Compared with the ordinary CNC lathe processing technology, the more prominent performance advantages of the turning-milling lathe are as follows:

(1) It can reduce the floor space and reduce the production cost
Because the functions of multiple CNC machine tools are integrated into one machine tool, the utilization of space utilization is improved, and the reasonable layout design is more convenient to use and maintain.

Although the unit price of a turn-milling compound processing equipment is relatively high, it saves production Time and multiple uses of one machine reduce the purchase of other equipment, which can reduce the number of fixtures, plant floor space and equipment maintenance costs, and enterprises can also reduce the investment in all fixed assets.

Secondly, the production cost savings of CNC turning-milling compound center lathe products can also be seen. The compact design improves the use of the site, and it can be more convenient in maintenance. The equipment price is higher, but the manufacturing process and the reduction of the equipment and maintenance expenses required for instant flattening can play a good cost control.

(2) Shorten the product manufacturing process chain and greatly improve the product production efficiency.

The CNC turning and milling compound center can be set with a variety of tool head fixtures and tool rest systems, which can reduce the tool change time during production, improve the efficiency of processing and production, and shorten the product manufacturing process chain.

Sneak CNC Technology is the company’s main products based on shaft processing, lead screw, rotation, CNC lathe processing, and chuck joints, which reduces the processing preparation time caused by the modification of the card, and also reduces the tooling fixture. Loading cycle and waiting time, production efficiency can be significantly improved.

In terms of processing power of CNC turning-milling compound center, the new CNC turning-milling compound center can load more customized machining tools. The tool arrangement is completely different from that of traditional CNC machining machines. It can realize automatic tool change, reduce tool change time, and improve processing. power.

(3) Reduce the number of manual clamping and improve the machining accuracy

The reduction in set-up times prevents tolerance build-up due to positioning datum conversions. Most of the current turning-milling composite processing equipment is equipped with the function of online detection, which can detect and control the position of important data in the manufacturing process, and then process the processing accuracy of the product;

the integrated high-strength design of the bed can improve the The gravity processing ability of difficult-to-cut materials is improved; the CNC turning-milling lathe of Sneak can be equipped with automatic feeding equipment, which can realize automatic feeding and realize the assembly line operation of a single lathe.

During turning and milling, the tool performs continuous cutting, and a relatively short cutting can be obtained for workpieces formed of any material. Because of the inclined bed design, automatic chip removal can be realized. And continuous chipping can allow the tool to have sufficient time to cool, reduce the thermal deformation of the workpiece, and improve the service life of the tool.

Compared with the traditional CNC lathe, the turning and milling process has a higher speed, the quality of the cut product is better, and the cutting force is reduced, the precision of the thin-walled rod and the slender rod is advanced, and the workpiece forming quality is high.

Because the cutting speed can be decomposed into the rotation speed of the workpiece and the rotation speed of the tool, according to the mechanical characteristics, the same processing effect can be achieved by advancing the rotation speed of the tool and decreasing the rotation speed of the workpiece.

It is useful, because the reduction of the speed of the forging blank can eliminate the oscillation caused by the eccentricity of the workpiece or the periodic change of the radial cutting force, and then ensure the smooth cutting of the workpiece and reduce the errors in the machining of the workpiece.

When the Sneak turning-milling compound lathe is processing the workpiece, the low speed of the workpiece can effectively reduce the centrifugal force of the workpiece, prevent the workpiece from deforming, and improve the machining accuracy of the parts.

Sneak CNC Technology is the company’s main products based on rotary top, screw, shaft processing, CNC lathe processing, tool shank toolholders, and chuck joints. The use of large longitudinal feed in turning and milling can also obtain accurate precision. Cutting, the surface roughness can also be effectively guaranteed. The turning and milling compound lathe can complete the processing of the workpiece by different methods such as turning, milling, drilling, and boring.

Ming Xiao Mfg as a professional CNC turn mill center machining service provider from China, equipped CNC turn mill center machining lathes several sets, undertake the custom services of precision turning parts, precision hardware parts, precision machanical parts manufacturing.