微波电子器件中大量使用梅花形腔体零件如图1,对这些零件,我们已能部分地采用冷挤压工艺生产。现在,把该工艺所用凸模的制造过程简述如下。一般的机械加工工艺无法加工如图2所示的梅花形凸模。曾经试过组合镶拼结构的凸 Microwave electronic devices in the use of plum-shaped cavity parts shown in Figure 1, for these parts, we have been able to partially cold extrusion process. Now, the manufacturing process of the punch used in the process is briefly described as follows. The general machining process can not be processed as shown in Figure 2 plum-shaped punch. Have tried combination of mosaic structure convex