What are the material requirements for precision machining? Before machining precision mechanical parts, pay attention to the density of materials. Once the density is too large, the hardness is also very large. Once the hardness exceeds the hardness of lathe tool, it cannot be processed. It will not only damage the parts, but also cause danger, such as flying out of the bending knife and hurting people. So, what are the requirements of precision machining for materials?
Precision machining materials can be divided into metal materials and non-metal materials. For metal materials, the hardness of stainless steel is the strongest, followed by cast iron, followed by copper, and the hardness of aluminum is the weakest. Ceramics, plastics and other processing belong to non-metallic materials processing
Stainless steel materials for precision machining parts
1. One is the requirement of material hardness. In some cases, the higher the material hardness is, the better, but it is only limited to the hardness requirement of the processed parts. The processed materials cannot be too hard, once the machine parts cannot be processed.
2. Secondly, the hardness and softness of the processed materials are moderate, at least one grade lower than that of the mechanical parts. At the same time, it also depends on the function of processing equipment and the reasonable selection of mechanical parts.
All in all, precision machining still has certain requirements for materials. Not all materials are suitable for machining, such as too soft or too hard materials. The former does not need to be processed, while the latter cannot.
Therefore, generally speaking, for machining, the quality of the material is lower than the hardness of the machine tool, so it can be processed. Not all materials can be precision machined. Some materials are too hard, and the hardness of machine parts is greater than that of machine parts. Therefore, these materials are not suitable for precision machining, except for machine parts made of special materials or laser cutting.
