Copper Machining Services

Copper is one of the most popular metal materials in machining, commonly used for copper milling, copper turning, 3-axis, 4-axis, and 5-axis machining.

About Machining Copper Material

Copper machining parts requires sufficient machining experience to be perfect for this project. Tirapid team manufactures various types of copper machined parts, whether it is 3-axis, 4-axis to 5-axis machining, or turning copper and Copper surface treatment.

Due to the excellent electrical conductivity of copper materials, it is often used in various electrical components. When machining copper materials, no special machining tools are required, and ordinary tools can complete the cutting of copper. Copper is one of the precious metals, and the processed copper slag can also turn waste into treasure, and the value of recycling is very high.

Copper processing parts are also widely used in the medical industry, and more medical devices will use copper parts as the first choice.Copper is one of the most insensitive metal materials for the human body, and is often used in the field of home appliances, such as gas water heaters, air conditioners and other products.

Types of Copper Grades

For a high-quality copper part, in addition to design and processing, the choice of copper material type is also critical. Copper is more expensive than any aluminum or steel, so price and manufacturing costs must be considered when choosing whether to use copper.

Pure copper C101: poor workability and stronger conductivity.
Copper C110: easy to process, general conductivity, low material cost.

Cu-ETP:Has excellent thermal conductivity and electrical conductivity, not suitable for welding, has certain fire resistance



Copper Material Properties

Copper is a metal material with good electrical and thermal conductivity and non-magnetic properties, which is widely used in various processing fields around the world. There are also many copper machined parts, such as:

  • Positive and negative electrodes of new energy vehicles
  • custom copper head gaskets
  • Customized brass nuts
  • Custom brass inserts
  • Pure copper heat exchanger
  • Home decoration


Finishing Copper

Copper machining, the process of turning a piece of material into a part is an automated process. This CNC machining process typically takes hours or more. Mechanical engineers are well aware that copper parts will oxidize quickly after long-term exposure to air, and different degrees of black spots or rust will form on the surface.

Tirapid provides a variety of copper surface treatment processes to meet the use of copper parts in different environments and occasions. We will recommend a reasonable surface treatment process for you. Our most popular finishes for copper parts,such as:

  • Electroplating Nickel—A layer of metal film is formed on the surface of copper parts, which is anti-corrosion, wear-resistant, and has a more beautiful surface.
  • Electroless Nickel—Increase the corrosion resistance of copper parts.
  • Electrolytic polishing—Remove fine burrs on the surface of copper parts, and the surface is bright and smooth.
  • Metal brushed treatment—Line pattern is formed by grinding the surface of the parts, which can be divided into straight line drawing, random pattern drawing, corrugation and swirl pattern.
  • Passivating—Remove various oil stains, rust spots, welding spots, etc., and improve the corrosion resistance of copper.
  • Copper high temperature blackening—Commonly used in the extinction of optical bodies, and black decoration.

Techniques for Copper Machining


CNC copper sheet is one of the most commonly used techniques for milling copper. When the shape of copper parts is designed to be square, CNC milling is usually selected.CNC milling is a subtractive process that uses a tool to move material across the surface of a copper material to remove excess material and create different shapes and structures.

Material types for milling copper:
●Copper plates

Minimum tolerance for milling copper:

Maximum size for milled copper:
●L80mm*W600mm*T500mm,Minimum wall thickness 0.8mm


Turning copper is copper machining on a lathe, which is usually selected when the turned parts are round or cylindrical in shape. CNC turning can machine a round bar into a hollow tube, or into a round shape with a shape. CNC turning can produce threads, outer circles, and inner circles.The turning surface is more perfect than the milling surface, and the knife pattern is more delicate and beautiful.

ypes of materials used in CNC turning copper:
●Copper bar
●Copper tube

Minimum tolerance for turning copper:

Maximum size for turned copper:
●Ø580mm*L600mm,Minimum wall thickness 0.6mm

What are the machinable coppers?

Machinable copper has the following types: machining oxygen-free copper, machining copper 101, machining copper 110, machining pure copper.

Can copper slag be recycled?

Yes, a small or large amount of copper slag will be produced after copper machining, and the price of copper slag will be higher than that of aluminum slag, because the recovery rate of copper is much higher than any other metal material.

How to deal with copper oxidation during processing?

In the process of copper processing, it cannot be exposed to the air for a long time, otherwise it will produce spots, which are also rust spots produced after oxidation. When Tirapid mechanical engineers process copper parts, they will always keep the copper parts in a sealed container and spray the surface of the parts with a special rust inhibitor.

How does the Tirapid team achieve the lowest processing cost?

When our engineers receive your drawings, the first is to evaluate the machinability of the parts. When the tolerances and drawing requirements are met, whether the parts can be processed at the same time, how to reduce the number of clamping, how to reduce manual deburring, manual grinding, etc., Evaluate your project from many aspects and dimensions, and finally use the most reasonable processing method.

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