• ascnc@asianstarcnc.com

The Art of Copper Machining: Techniques and Tips for Precision and Efficiency

Copper, known for its excellent electrical conductivity, corrosion resistance, and malleability, is a popular material in various industries, including electronics, automotive, and construction. Machining copper can be challenging due to its softness and tendency to generate heat. In this blog post, we will discuss the techniques and tips to ensure precision and efficiency when machining copper.

Choosing the Right Tools

Using the correct tools is essential for successful copper machining. Here are some recommendations:

1. Cutting Tools: Opt for sharp, high-speed steel (HSS) or carbide tools with a positive rake angle. This will help reduce the cutting force and minimize the risk of work hardening.

2. Coolants: Applying a suitable coolant is crucial to dissipate heat and prevent built-up edge (BUE) formation. A water-soluble coolant or oil mist works well for copper machining.

3. Workholding: Use soft jaws or vacuum chucks to avoid damaging the soft copper workpiece during machining.

Machining Techniques



When milling copper, consider the following tips:

Use climb milling to reduce cutting forces and heat generation.

Employ a high helix angle to improve chip evacuation and reduce BUE.

Opt for a large nose radius to distribute the cutting force over a larger area, minimizing the risk of tool breakage.



For turning copper, keep these points in mind:

Use a large nose radius and positive rake angle to minimize cutting forces.

Employ high spindle speeds and moderate feed rates for optimal surface finish and tool life.

Apply a coolant to reduce heat and BUE formation.



When drilling copper, adhere to these guidelines:

Use a split point or parabolic flute drill to improve chip evacuation and reduce heat generation.

Employ a low feed rate and high spindle speed to minimize work hardening.

Apply a coolant to dissipate heat and prevent BUE.

Post-Machining Processes

Copper workpieces may require additional processes after machining to achieve the desired properties or appearance:

1. Deburring: Remove sharp edges and burrs created during machining using manual or automated deburring techniques.

2. Surface Finishing: Improve the surface finish of copper parts through processes like polishing, electroplating, or anodizing.

3. Heat Treatment: Enhance the mechanical properties of copper alloys through annealing, quenching, or precipitation hardening.

In conclusion, the success of copper machining lies in selecting the right tools, employing appropriate techniques, and considering post-machining processes. By following these tips and guidelines, you can achieve precision and efficiency in your copper machining projects.

CNC Copper Machining

CNC Machining Copper Material is good electrical conductivity, thermal conductivity, it is soft and good for machining as it has high plasticity, it is easily and rapidly to carry out desired shape as machining cutter can run faster than other steel materials, and also reach high precision.

Copper has a shiny reddish-orange finish, which varies slightly based on the surface finish method. Copper can be media-blasted and polished to achieve many different cosmetic surface finishes.

CNC Machining Copper Parts are widely used in the manufacture of electrical wires, cables, electric brushes, electric spark, and other electrical devices and products.

CNC Copper Machining

Benefits of CNC Copper Machining

1/ CNC Machining Copper Parts are excellent in electricity conductivity, supporting very good electric function

2/ CNC Machining Copper Parts are soft, easy to design into different shape, also suitable for many processes

3/ Copper is easy for cutting and machining, its production efficiency is much higher than steel series

4/ Good propriety for bending and shaping

5/ Heat transferring function very good, high resistance, temperature stability, long durable using

6/ Stable surface, non-surface treatment is durable, electroplating is also used on copper parts

CNC Copper Machining

Composition And Property of CNC Machining Copper

Copper Property Alloy Type Content Melting Point Hardness Tensile Strength Density
Cu-based Zn, Sn, Si, Al, Ni 1083°C HB35-45 Low 8.9 g/cm3

Common Materials Code of CNC Machining Copper

Copper Alloy Workable Processes Surface Finishing for Copper Parts Materials Code
CNC Turning, CNC Milling, CNC Drilling, Molding, Forging, Fabrication, Welding, etc. Passivation, Anodizing, Plating, Chemical Polishing, etc. Copper 110
Copper 101
Copper 145
other more Copper Alloy

Asianstar: Professional CNC Machining Supplier

From year of 2005, Asianstar Company establish the CNC Machining Factory in Guangdong Province, China.
We mostly provide CNC Turning, Milling, Drilling, Grinding, and Multi Machining processes service on various materials.
With the Belief of becoming a key supplier in the supply-chain of Precision Components, we strictly control our product quality, keep high precision on our components production, buildup the whole-process QC System and submit the satisfaction for every order.
By long term development, we have buildup partnership with world-wide clients, supporting our partners in Designing, Optimizing, Producing and Testing on each type of components.


Advantages of Asianstar CNC Copper Machining

Strong Facilities

Asianstar many CNC and stamp machines allow us to produce various copper parts, different sizes, and structures are all well done by suitable solution

Long-term Skills

Asianstar professional engineers team has experience from year 2005, producing copper parts for world wide electric products

Stable Quality

Asianstar QC system and QC tools guarantee our products are perfect result. We have procedures to control copper parts quality during production

Competitive Price

Asianstar aim to buildup partnership with clients, always choose best suitable facilities to carry out the components in competitive prices


CNC Brass Machining


CNC Machining Brass material is used for wide range components, we support clients to produce a variety of parts such as gears, locks, electronics, pipe fittings, etc.

CNC Copper Machining


CNC Machining Copper material is soft and easy to machining on different shape of components. We mostly produce copper components for electric devices by machining and stamping

CNC Aluminum Machining


CNC Machining Aluminum materials is one of our most used materials. We support clients to turning, drilling or milling on aluminum material from size 0.5mm to 470mm

CNC Stainless Steel Machining

Stainless Steel

CNC Machining Stainless Steel are common material for wide range components, we produce Stainless Steel turning parts, milling parts, high smoothness components, etc.

CNC Titanium Machining


CNC Machining Titanium material brings components superb features, we use titanium to produce high precision work-piece for clients from aircraft, aerospace, medical devices

CNC Plastic Machining


Our CNC Machining Plastic materials includes ABS, HDPE, LDPE, Nylon, POM, Peek, Polycarbonate, etc. We produce them in high precision and high smoothness.


  • Q1.Do you support ODM/OEM?

    Yes, we support ODM/OEM, we provide custom-made service for clients or even support clients on designing or improving

  • Q2.Do You Have Stock
  • Q3.What Is Your Production Capacity?
  • Q4.Where Is Your Factory?
  • Q5.Can You Provide Samples?
  • Q6.How About Your After-sales Service?
Get The Best Quotes Now