What Are The Requirements For Precision Machining?

- Mar 19, 2018 -

Materials for precision machining such as CNC machining, fall into two categories, metallic materials, and non-metallic materials.

For metals, stainless steel is the largest in hardness, followed by cast iron, next followed by copper, and finally aluminum. Precision machined brass part is one of the choice of the CNC milling.

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

Stainless steel material for precision machining

The first is the requirement for the material hardness. For some applications, the higher the hardness of the material, the better. It is only limited to the hardness requirements of the machining parts. The processed material cannot be too hard. If it is harder than the parts, it cannot be processed.

Secondly, the material is moderately soft and hard, at least one grade lower than the hardness of the parts. At the same time, it depends on the function of the device being processed and the proper selection of the parts.

In short, the most basic one is to pay attention to the density of the material before processing. If the density is too high, it is equivalent to a large hardness, and if the hardness exceeds the hardness of the machine (lathe turning tool), it cannot be processed. It can only damage parts and can also be dangerous. Therefore, in general, for mechanical processing, the material material is lower than the hardness of the machine knife so that it can be processed.


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