What material is suitable for CNC precision machining?

CNC precision machining is not suitable for all raw materials. If the hardness of some raw materials is too high, exceeding the hardness of the machined part, the part may crack. Therefore, these raw materials are not suitable for cnc precision machining unless they are made from unique raw materials or laser cutting.

CNC precision machining raw materials are divided into two categories: metal raw materials and non-metallic raw materials.

For metal raw materials, stainless steel has relatively high hardness, followed by cast iron, copper and aluminum.

The processing of ceramics and plastics belongs to the processing of non-metallic materials.


  1. First, the hardness of the raw material is necessary. In some cases, the harder the raw material, the better the hardness. Hardness requirements for machining parts only. The processed raw material should not be too hard. If they are harder than the part, they cannot be machined.

Five-axis cnc milling

  1. Secondly, the hardness and softness of the material are moderate, at least one grade lower than the hardness of the part. At the same time, it depends on the function of the machined part and the correct selection of the part material.

In short, cnc precision machining still requires certain materials. Not all materials are suitable for processing, such as raw materials that are too soft or too hard. The former does not require processing, while the latter cannot be processed.

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