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Copper Machining: Tips and Techniques for Precision Manufacturing

Copper is a highly versatile and widely used material in various industries due to its excellent electrical conductivity, thermal conductivity, and corrosion resistance. As a result, it is often used in electrical components, heat exchangers, plumbing, and automotive parts. In this blog post, we will explore the various tips and techniques for precision manufacturing with copper machining.

Understanding Copper Alloys

Copper can be alloyed with other metals to improve its mechanical properties, making it more suitable for machining. Some common copper alloys include:

1. Brass- Copper and zinc alloy, known for its excellent machinability and corrosion resistance.

2. Bronze- Copper and tin alloy, recognized for its high strength and wear resistance.

3. Copper-nickel- Copper and nickel alloy, which offers excellent corrosion resistance, particularly in marine environments.

Each alloy has its unique properties, so it's crucial to select the appropriate material for your specific application.

Machining Tips and Techniques

Tool Selection

Selecting the right cutting tools is essential for successful copper machining. Carbide tools are recommended due to their excellent wear resistance and ability to withstand high temperatures. High-speed steel (HSS) tools can also be used, but they may wear out faster.

Cutting Speeds and Feeds

Copper is a soft and ductile material, which can cause issues with chip formation and tool wear. To mitigate these issues, use higher cutting speeds and lower feed rates. This will help prevent the material from sticking to the cutting tool and reduce the risk of work hardening.

Lubrication and Cooling

Copper has a high thermal conductivity, which means that heat generated during machining is quickly transferred away from the cutting zone. However, using proper lubrication and cooling techniques is still essential to prevent tool wear and ensure a high-quality surface finish. Use a water-soluble coolant or cutting oil to reduce friction and heat buildup.


Due to copper's softness, it can be challenging to hold the workpiece securely during machining. To prevent the material from deforming, use soft jaws or other workholding devices that distribute the clamping force evenly across the workpiece.

Copper Machining Processes

Various machining processes can be used for copper, depending on the desired end result. Some common processes include:

1. Milling- The process of removing material by advancing a rotating cutter into the workpiece. This method is suitable for creating complex geometries and intricate designs.

2. Turning- A process in which the workpiece is rotated while a cutting tool removes material. This method is ideal for creating cylindrical shapes and other round parts.

3. Drilling- The process of creating holes in a workpiece using a rotating cutting tool. Copper drilling requires sharp tools and proper cooling to ensure clean, precise holes.

In conclusion, copper machining requires a thorough understanding of the material's properties and the appropriate techniques to achieve precision manufacturing. By selecting the right tools, optimizing cutting speeds and feeds, and using proper lubrication and workholding methods, you can successfully machine copper and its alloys for various applications.

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.


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