Mechanical parts processing manufacturer--Huazheng Precision

      Machining processing method: In order to ensure the machining accuracy, rough machining and finishing must be carried out. During rough machining, a large number of workpieces will be subjected to cutting force, large clamping force, and a lot of heat, which will easily cause surface hardening. , There is a large internal stress inside the workpiece. If the finishing and roughing are continuous, the precision of the precision parts will be redistributed with the stress after finishing. It will be lost quickly, for some parts with high machining accuracy. Low temperature annealing and aging treatment should be performed after roughing and before finishing to relieve internal stress.
       Reasonable selection of machining equipment. The main process of rough machining cuts off most of the machining allowance, and does not require higher machining accuracy. Therefore, rough machining machine tools only need high-power, low-precision machining, and finishing machining requires more precise machine tools. Roughing and finishing on the machine tool can not only give full play to the performance of the equipment, but also prolong the service life of the machine tool.
      Heat treatment is required in the machining process, and the arrangement of the heat treatment process is as follows: in order to improve the machinability of the metal, such as annealing, normalizing, quenching and tempering, etc., it is usually carried out before machining, in order to eliminate stress, such as aging treatment and quenching and tempering treatment, etc. It is usually carried out after roughing and before finishing. In order to improve the mechanical properties of the parts, carburizing, quenching and tempering, etc., it is usually carried out after mechanical processing. If there is deformation after processing, the processing process should be arranged.