Demand for material application in precision parts processing

For precision parts processing, not all materials can be precisely processed. Some materials whose hardness is too large, exceeding the hardness of the processed parts, may break the parts, so these materials are not suitable for precision machining unless they are special Parts made of materials, or laser cutting.

　　 The materials for precision parts processing are divided into two categories, metallic materials and non-metallic materials.

　　For general metal materials, the hardness is greater for stainless steel, followed by cast iron, followed by copper, and finally aluminum. The processing of ceramics, plastics, etc. belongs to the processing of non-metallic materials.

1. The first is the requirement for the hardness of the material. For some occasions, the higher the hardness of the material, the better, but it is limited to the hardness requirements of the machined parts. The machined material should not be too hard. If it is harder than the machine part, it will be impossible to process. of.

　　2. Secondly, the material is moderately soft and hard, at least one grade lower than the hardness of the machine part. At the same time, it also depends on the purpose of the machined device and the rational selection of the machine part.

　　 In short, precision machining still has some requirements for materials. Not all materials are suitable for processing, such as materials that are too soft or too hard. The former is not necessary for processing, while the latter cannot be processed.

Therefore, the most basic one is that you must pay attention to the density of the material before processing. If the density is too large, the hardness is also large. If the hardness exceeds the hardness of the machine (lathe tool), it cannot be processed. It will only damage the parts, but also cause dangers, such as the turning tool flying out and hurting people. Therefore, generally speaking, for mechanical processing, the material material must be lower than the hardness of the machine knife, so that it can be processed.