What are the material quality requirements for precision parts processing? In the manufacturing process of precision parts processing, the manufacturing process solutions are different due to the different production requirements and conditions of various parts. When the same parts are produced by different process solutions, their production efficiency and economic benefits are also different.
Under the premise of ensuring the quality of the part, the process of developing a reasonable and feasible process solution with good overall technical and economic efficiency is called the process design of the part. In addition, there are certain requirements for the selection and quality of materials.
Not all materials can be precision machined, some materials are too hard, more than the hardness of the processed parts, it is possible to make the parts collapse, so these materials are not suitable for precision machining, unless the parts are made of special materials, or laser cutting.
With the material is divided into two categories of metal materials and non-metallic materials, for metal materials, the highest hardness is stainless steel, followed by cast iron; then copper, and finally aluminum; and the processing of ceramics, plastics and other non-metallic materials belong to the processing.
Regarding the hardness requirements of the material, in some occasions, the higher the hardness of the material, the better, but only the hardness requirements of the processed parts; the material to be processed should not be too hard. The material is moderately soft and hard, at least one notch lower than the hardness of the part. Also, it depends on the function of the processing equipment and the reasonable choice of the part material.
Precision machining still has some requirements for materials, not all materials are suitable for processing, such as too soft or too hard materials, the former does not need to be processed, the latter can not be processed.
Therefore, the parts must pay attention to the density of the material before processing;, if the density is too large, which is equivalent to the hardness is also large, if the hardness exceeds the hardness of the machine (lathe turning tool), it can not be processed, not only will damage the parts, but also cause danger, such as knife flying out to injure people. Therefore, in general, for machining, the quality of the material should be lower than the hardness of the machine tool so that it can be processed.