图1所示的零件形状复杂,其材料为0.4毫米厚的纯铝板,板料表面有抛光磨纹及印好的花纹图案。用普通钢模压制,要经过多道工序,不仅工艺复杂,生产过程中还容易损坏零件表面质量,造成报废;而且模具制造精度要求高,加工困难。我们采用橡皮复合模,可一次完成零件的压延成型、压锥形窝、冲孔等工序。不仅简化了工艺,而且模具结构简单,制造容易,且能确保零件表面质量。成品形状及内框尺寸与成型凸模一致。但在普通曲轴或偏 The parts shown in Fig. 1 are complex in shape and are made of pure aluminum with a thickness of 0.4 mm. The surface of the sheet is buffed and printed with patterns. With ordinary steel mold, to go through multiple processes, not only complicated process, the production process is also easy to damage the surface quality of parts, resulting in scrapped; and high precision mold manufacturing, processing difficulties. We use the rubber compound mold, can be a part of the calendering, pressure conical fossa, punching and other processes. Not only simplifies the process, and mold structure is simple, easy to manufacture, and to ensure the quality of parts surface. Finished shape and the size of the inner frame and punch the same. But normal crankshaft or partial