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对铝合金曲柄方孔加工工艺性进行了分析。铝合金曲柄冲方孔工艺,模具结构及模具的工作过程,给出了冲方孔凸模和凹模的设计方法。并对生产中出现的冲方后方孔的表面粗糙度达不到产品要求的问题,提出了改进措施。改进后,方孔的表面粗糙度完全达到产品图的要求。
The processing of the aluminum alloy crank square hole was analyzed. The process of punching the aluminum alloy crank hole, the mold structure and the working process of the mold are given, and the design methods of the punch and the die of the punch square hole are given. And the emergence of the red side of the rear hole roughness of the product does not meet the requirements of the problem, put forward improvements. After the improvement, the surface roughness of the square hole completely meets the requirements of the product drawing.