Some key points to be paid attention to in the processing of precision mould parts

1. Select equipment reasonably. Precision mold parts machining mainly cuts off most machining allowance, does not need high-precision machining parts, so rough machining should have more power and high-precision machine tools, and adhere to a relatively high precision machine during the completion process. Rough and finish machining on different machines, can give full play to equipment capacity, can extend its service life precision machine tools.

2. In order to ensure the machining accuracy of precision mold parts, the machining of coarse and fine mechanical parts shall be from the best. Because when the rough mechanical parts are processed, the cutting amount is large, the cutting force, clamping force, heat and machining surface of the mechanical parts have obvious machining hardening phenomenon, the workpiece has large internal stress, if the rough mechanical parts are processed continuously, the accuracy of the parts will soon lose due to the redistribution of stress. For some high-precision parts of mechanical parts processing. After roughing and finishing, low temperature annealing should be arranged or aged to eliminate internal stress.

3. Heat treatment process is often arranged in the processing route of precision mold parts. The location is arranged as follows: heat treatment process to improve the cutting performance of metals, such as annealing, normalizing, tempering, generally arranged in the machining of mechanical parts. Remove internal stress, such as aging treatment, conditioning treatment, such as general arrangement, after rough machining, but after completion. In order to improve the mechanical properties of components, such as carburizing, quenching and tempering, generally arranged in the machining of mechanical parts.