一、概述图1所示是航天部八二五厂Y11系列产品中的接插件壳体,需求量大,尺寸精度(互换性)和光洁度高;又由于产品要在某些力学环境(如离心、冲击、加速度)中使用,因而也必须具备优良的内在质量。本零件以前使用压铸工艺生产,由于压铸的一些固有缺陷,产品质量不理想。壳体零件采用冷挤新工艺之后的主要经济效益简述如下: I. Overview Figure 1 shows the connector housing of the Y11 series in the 85th Plant of the Aerospace Department. The demand is large, the dimensional accuracy (interchangeability) and finish are high. Since the products are required to be used in some mechanical environments Centrifugal, Impact, Acceleration) and therefore must also have excellent intrinsic quality. The parts were previously produced using the die-casting process and the quality of the product was not satisfactory due to some inherent defects in die-casting. The main economic benefits of the shell parts after the cold extrusion process is as follows: