Shanghai Wensha Precision Mechanical Element MFG Co., Ltd

Precision machining of a workpiece with a processing machine size or performance of the process of change. Be processed according to the temperature of the workpiece in the state, is divided into cold and hot processing. Generally processed at room temperature and does not cause the workpiece chemical or phase changes, called cold. Generally higher or lower than room temperature processing, the workpiece can cause chemical or phase changes, said thermal processing. Cold processing method according to the difference between the pressure can be divided into cutting and processing. Thermal processing common with heat treatment, forging, casting and welding.