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Cutting Copper on CNC Router: A Comprehensive Guide for Precision and Efficiency

Copper is a versatile and widely used material in various industries due to its excellent electrical conductivity, corrosion resistance, and malleability. Cutting copper on a CNC router can be a challenging task, especially when it comes to achieving high precision and efficiency. In this blog post, we will discuss the essential tips and techniques to help you master cutting copper on a CNC router and achieve the best results.

Choosing the Right CNC Router and Tools

Selecting the right CNC router and cutting tools is crucial for achieving precise and efficient copper cutting. Here are some factors to consider:

1. CNC Router Size and Power: Choose a CNC router with sufficient power and size to handle the thickness and dimensions of the copper sheets you will be working with.

2. Spindle: Opt for a high-speed spindle, preferably with variable speed control, to achieve clean and accurate cuts.

3. End Mills: Use carbide end mills specifically designed for cutting non-ferrous metals like copper. These end mills have a higher number of flutes and a larger helix angle, which helps to evacuate chips effectively and prevent material buildup.

4. Coolant System: Copper generates heat during the cutting process, which can cause tool wear and reduce the quality of your cuts. A coolant system can help to dissipate heat and prolong tool life.

Preparing the Copper Material

Proper material preparation is essential for achieving clean and accurate cuts. Follow these steps to prepare your copper sheets:

1. Clean the Surface: Remove any dirt, grease, or oxidation from the copper surface using a suitable cleaning solution.

2. Secure the Material: Use clamps or a vacuum table to hold the copper sheet firmly in place on the CNC router bed. Make sure the material is flat and level to prevent uneven cuts.

3. Apply Masking: If you plan to engrave or cut intricate designs, apply a masking material, such as vinyl or paper, to the copper surface. This will help to protect the surface from scratches and reduce the risk of burring.

Setting Up the CNC Router

Before starting the cutting process, it's essential to set up the CNC router correctly. Follow these steps:

1. Load the Design: Import your design file into the CNC router software and set the desired cutting parameters, such as depth, speed, and feed rate.

2. Set the Zero Point: Establish the zero point on your material by moving the end mill to the desired starting position and setting the X, Y, and Z axes to zero.

3. Test Run: Perform a test run without the spindle running to ensure the CNC router follows the correct cutting path and to identify any potential issues.

Cutting the Copper

With your CNC router and material prepared, it's time to start cutting the copper. Keep these tips in mind:

1. Start Slowly: Begin the cutting process at a slower speed and gradually increase it as you gain confidence and experience.

2. Monitor Tool Wear: Regularly inspect your end mill for signs of wear or damage. Replace it as necessary to maintain cutting efficiency and accuracy.

3. Use Coolant: Apply coolant during the cutting process to reduce heat buildup and prolong tool life.

4. Inspect the Cuts: Periodically pause the cutting process to inspect the quality of your cuts. Adjust the cutting parameters if necessary to achieve the desired results.

By following these guidelines and tips, you can successfully cut copper on a CNC router with precision and efficiency. With practice and experience, you'll be able to create intricate designs and high-quality copper components 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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