What is CNC Copper Machining?

CNC machining is the main process for producing copper parts in many industries. Copper has good ductility, electrical conductivity and thermal conductivity. A wide variety of machined copper parts are used in numerous industries such as automotive, aerospace, and medical. Copper is also one of the materials that are easy to process. Read on to learn more about CNC machining copper.

CNC machining copper parts are used in many applications including electrical, construction, transportation and consumer goods companies. The most common parts applications are heat exchangers, electrical connectors, radiators, bearings and gears, gas welding nozzles, and more.

What are copper materials?

Copper 101: Copper 101 is pure copper with a copper content of 99.9%. It is commonly used to make bronze and brass.

Bronze: Bronze is an alloy of tin, copper, and phosphorus that has good hardness and strength and is used in the production of bearings and gears.

Brass: Brass is an alloy of zinc and copper with good machinability and hardness. It is suitable for Machining low-friction and complex parts, such as valves, gears, bearings and locks, and can also be used to make some outdoor parts.

Evaluation of CNC Machining Copper Parts

Advantages of CNC machining copper parts:

It has good machinability, ductility and impact strength, and good hot and cold forming properties. In addition, CNC machining copper parts are compatible with various cost-effective surface treatment technologies.

Disadvantages of CNC machining copper parts:

When spot welding copper materials, processes such as plated metal arc welding cannot be used. In addition, different grades of copper have different corrosion resistance. Therefore, some CNC Machined Copper parts are prone to corrosion in environments containing active substances.

What should be paid attention to in CNC copper Machining?

Choose the right copier. Copper is one of the most expensive materials and should be selected considering its application properties and cost-effectiveness.

Set the feed rate. The feed rate is the speed at which the cutting tool engages the workpiece. Therefore, it is necessary to set the correct feed rate before machining copper parts, because it will affect the quality, service life and surface finish of copper parts. Additionally, copper conducts heat efficiently and high feed rates can increase tool wear over time.

Design for Manufacturability. Before Machining copper parts, design requirements and specifications must be sorted out, which will help realize the functions of copper parts. This includes reducing the number of part setups, dimensional checking, and preventing deep cavities with small radii.

Choose the correct tool material. Many bronze plates are softer than aluminum and steel of equal strength. This can cause blade deformation and tool wear. Therefore, it is very important to choose the right tool material. High-speed steel is a tool material suitable for the CNC machining of copper.

What to do with Copper Parts

Generally, copper is used to conducting heat and electricity. Therefore, the surface treatment used for other machined metals is not suitable as it will inhibit these properties. There are the following methods to treat the surface of copper parts:

Electrolytic polishing. Copper can be electropolished to obtain a very smooth and shiny surface. This process typically removes small layers of material between 0.0001 inches (0.00254 mm) and 0.0025 inches (0.0635 mm) from the surface. Electropolishing can further improve corrosion resistance without compromising electrical conductivity.

plating. The metal plating of copper generally helps prevent oxidation of its outer surface while maintaining electrical and thermal conductivity. Especially precious metal plating (such as silver or gold plating) can provide low contact resistance to maintain excellent electrical conductivity and soldering performance.

China is the largest CNC machining parts supplier in the world and has the most Machining plants in the world. It is very easy for customers to choose copper parts processors, but it is not easy to choose a cnc machining parts supplier that suits their products. AsianStarCNC is a company worth recommending.

AsianstarCNC multiple CNC machine tools allow us to produce all kinds of titanium parts, of different sizes, complex structures are done professionally, the professional engineering team has experience in 2005, with professional knowledge to produce many copper parts for global customers, Yaxing quality control system And quality control tools guarantee our products are perfect results. We have procedures to control the quality of titanium parts during production.