1： Heat treatment of parts materials using precision molds for plastic parts

The heat treatment of precision plastic mold parts only needs to achieve the required hardness, and internal stress control is also required during the processing to ensure the dimensional stability of the parts.

2： Grinding processing of precision mold parts for plastic parts

There are three main types of grinding machines: surface grinding machines, inner and outer circular grinding machines, and tool grinding machines. During precision grinding, grinding deformation and grinding cracks should be strictly controlled, even small cracks will be exposed during subsequent processing. Therefore, the feed rate for fine grinding should be small, not large, and the coolant should be sufficient.

3： Electrical machining of precision mold parts for plastic parts

How can a modern plastic precision mold factory lack electrical machining? Electrical machining can process various types of irregular and high hardness parts, which can be divided into wire cutting and electrical discharge machining. The slow wire cutting method has an accuracy of up to ± 0.003mm and a roughness of Ra0.2 μ M. Electrical discharge machining requires the production of machining electrodes, which can be classified into coarse and fine electrodes. The design of precision machining electrodes requires good shape compliance and can be easily produced and processed using CNC machine tools.

4： Surface treatment of precision molds for plastic parts

The knife marks and wear marks left on the surface of plastic parts during precision mold processing are places of stress concentration and sources of crack propagation. Therefore, after precision mold processing of plastic parts, it is necessary to strengthen the surface of the parts and have them polished by fitters to eliminate processing hazards.