Introduction of core inserts In recent years, my country's mold industry has grown rapidly at an average rate of more than 15%, which is much higher than the average value-added of national GDP. Among them, precision casting molds account for about 5% of the total output value of various molds, and the annual growth rate is as high as 25%.

　　1. Introduction of core inserts 2D and 3D surface roughing, non-installation non-working plane processing (including safety platform surface, buffer mounting surface, pressure plate plane, side reference plane). Before semi-finishing, the alignment of the side reference plane ensures accuracy.

　　2. Before finishing, the reference plane of the process reference hole should be aligned, the allowance of the insert should be checked, and the machining accuracy should be checked and reviewed. Finishing profile 2D, 3D, side punch profile and hole position, finishing process reference hole and height reference, finishing guide surface, and guide hole.

　　3. For the key and difficult points of processing, the process should be particularly emphasized, and it is necessary to combine the processing places, and the process should be clearly expressed. The process preparation is concise and the expression is detailed, and the processing content is expressed numerically as much as possible. When inserts need to be processed separately, pay attention to the process requirements of processing accuracy.

　　4. Precautions for plastic injection mould processing: After combined processing, the insert parts that need to be processed separately are the benchmark requirements for process installation and separate processing during combined processing. Springs are easily damaged in mold processing, so choose mold springs with long fatigue life.

　　Introduction of core inserts In recent years, my country's mold industry has grown rapidly at an average rate of more than 15%, which is much higher than the average value-added of national GDP. Among them, precision casting molds account for about 5% of the total output value of various molds, and the annual growth rate is as high as 25%. At present, my country's automobile and motorcycle industries have entered a period of rapid growth, and the output has increased significantly for many years in a row. In particular, the rapid growth of cars closely related to the precision casting industry has increased the demand for complex and precision casting molds.