Precision machining not all materials can be precision machining, part of the material hardness is too large, more than the hardness of the processing machine parts, it may break the machine parts, so these materials are not suitable for precision machining, unless it’s made of a special material or laser cut.
for precision parts processing materials are divided into two categories, metallic materials, non metallic materials.
for general metallic materials, the hardness of stainless steel is greater, followed by cast iron, followed by copper, and finally aluminum. And the processing of ceramics, plastics, etc. belongs to the processing of non-metallic materials.