Precision Machining in Mold Manufacturing

A mold is composed of numerous components, and the quality of the components directly affects the quality of the mold. The final quality of the components is guaranteed by precision machining, so controlling precision machining is of great importance. In most domestic mold manufacturing enterprises, the methods used in the precision machining stage are generally grinding, electrical machining, and fitter treatment. At this stage, it is necessary to control many technical parameters such as part deformation, internal stress, shape tolerance, and dimensional accuracy. In specific production practice, there are many operational difficulties, but there are still many effective experience methods worth learning from.

The processing of mold parts can be roughly divided into three categories based on their appearance and shape: plates, irregular parts, and shafts. The common process is roughly as follows: rough machining - heat treatment (quenching, tempering) - precision grinding - electrical machining - fitter (surface treatment) - assembly machining.