CNC MACHINING by Frontline Manufacturing

Copper is among the oldest metals used to make components. It is a malleable, ductile metal that conducts heat and electricity well. These characteristics make it an excellent choice for CNC machining. CNC-machined copper parts are employed in various sectors, including automotive, aerospace, and medicine. It is one of the easiest materials to process, allowing machinists to completely utilise the material’s qualities. 

Continue reading this to learn everything about CNC machining Copper:

Copper Brand Numbers and Copper Alloys Used in CNC Machining

Here are some of the most frequent copper plate numbers used in CNC machining:

Copper 101: Copper 101 is the purest copper grade, with 99.9% copper content. It serves as a foundation for bronze and brass alloys. C10100, commonly known as an oxygen-free electron, is a pure copper with a 0.0005% oxygen concentration. Furthermore, it is the most premium of these copper grades.

Copper C110: Copper C110 is an electrolytic tough-pitch copper that is easier to process than Copper 101. This grade contains 99.9% Cu and is suitable for various electrical applications.

Bronze: Bronze is a tin, copper, and phosphorous alloy recognised for its hardness and strength. Bearings and gears are CNC processed from bronze.

Brass: Brass is a zinc and copper alloy known for its workability and hardness. Brass is machined to create high-friction, complicated elements such as valves, gears, bearings, and locks. Brass parts are also employed in outdoor applications, where they may be exposed to seawater and other pollutants.

Things To Remember When CNC Machining Copper

CNC machining copper is less difficult than cutting aluminium or steel of equal strength. Certain elements, however, must be kept in mind for the greatest outcomes.

Choosing the proper copper grade: Although copper has been used effectively for many years, it is one of the most costly substances. C101 is less machinable than C110 but less expensive. As a result, the material you choose will be determined by the properties of your application.

Set the Feed Rate: This is the rate at which the cutting tool is fed. When the feed rates are high, the cutting tool generates a high temperature, which poses problems with copper CNC machining.

Consider Design for Manufacturability: This should be considered when CNC machining copper. Maintaining a high tolerance without adjusting the application’s operation is preferable. Additionally, minimising part configurations is a smart practice.

Choose the Right Tool Material: Many copper grades are easily machinable and softer than equivalent-strength aluminium and steel. It may result in chip development as well as tool wear and tear. As a result, selecting the proper tool material is critical. High-speed steel is an appropriate material for CNC machining copper cutting tools.

Copper and copper alloys are well known for their outstanding machinability and advantageous properties. However, the success of your CNC machining copper project will be determined by the CNC machine shop with whom you collaborate. Frontline Manufacturing is a manufacturer of precision CNC machining in Brisbane. We provide precision machined parts to various sectors, including electronic, medical, defence, and aerospace. You can contact us to discuss your CNC machining copper requirements.