There are definitely a lot of things to pay attention to when processing, there are also many factors that affect the quality of the product, so we must pay attention to some of the details of the above issues, so let's learn about the following precision machining requirements of the material what?
1. first is the requirement of material hardness, for some occasions, the higher the hardness of the material is the better, but only limited to the hardness requirements of the processing machine parts, the processing material can not be too hard, if harder than the machine parts can not be processed.
2. Secondly, the material is soft and hard, at least one grade lower than the hardness of the machine, but also depends on the role of the processed device is to do what with a reasonable selection of materials for the machine parts.
In short, precision machining requirements of the material or some, not what material is suitable for processing, such as too soft or too hard material, the former is not necessary for processing, and the latter is impossible to process.
Therefore, the most basic one is, before processing must pay attention to the density of the material, if the density is too large, equivalent to the hardness is also very large, and if the hardness is more than the hardness of the machine parts (lathe turning tool), it is impossible to process, not only will damage the parts, but also cause danger, such as turning tool flying out of the crash injury. Therefore, generally speaking, for mechanical processing, the material material should be lower than the hardness of the machine tool, so that it can be processed.
