Precision mechanical parts processing of the material requirements
Not all materials can be processed for precision mechanical parts, some materials are too hard, across the hardness of the machining parts, may collapse the parts, so these materials are not suitable for precision mechanical parts processing, unless made of special materials, or laser cut.
The materials for precision mechanical parts are divided into two categories, metallic materials and non-metallic materials. For metal materials, the hardness is large in stainless steel, followed by cast iron, followed by copper, and then by aluminum. Ceramics, plastic and other processing is attributed to the processing of non-metallic materials.
Precision mechanical parts processing mainly put forward the requirements for the hardness of the material, for some occasions, the higher the hardness of the material, the better, but limited to the hardness of the processing parts, processing materials can not be too hard, assuming that the processing than the parts. Material soft and hard moderate, at least lower than the hardness of the parts, but also to see the processing of the device is to do what use, reasonable selection of the parts.
Precision mechanical parts processing of materials is still some requirements, not what materials are suitable for processing, such as too soft or too hard materials, the former is not necessary for processing, and the latter is unable to be processed. Therefore, we must pay attention to the density of the material before processing.
Suppose the density is too large, equivalent to the hardness is also very large, and if the hardness across the hardness of the parts (lathe knife), is not processed, not only will damage the parts, but also constitute a danger, such as the knife crash out wounding. Therefore, generally speaking, as for the mechanical processing, the material material should be lower than the hardness of the machine knife, so as to be processed.
