Processing principles for precision parts processing

In order to ensure machining accuracy in precision parts processing, it is best to separate the processing of coarse and fine mechanical parts. Because of the large cutting amount, the large cutting force, clamping force and heat generation of the workpiece during the processing of rough mechanical parts, and the obvious work hardening phenomenon on the machining surface of the mechanical parts, there is a large internal stress in the workpiece. If the processing of rough and rough mechanical parts continues, the precision of the finished parts will be lost quickly due to the redistribution of stress.

Reasonable selection of equipment is necessary in the processing of precision parts. Rough machining of mechanical parts mainly involves cutting off most of the machining allowance, and does not require high machining accuracy. Therefore, rough machining should be carried out on machine tools with high power and low accuracy, while precision machining, machining, and processes require the use of high-precision machine tools. Rough and fine machining are processed on different machine tools, which can fully utilize equipment capabilities and extend the service life of precision machine tools.