微电机端盖板的模具设计及加工工艺１０００２２北京工业大学阮中燕曹桂荣１０００２７北京机电研究院王春生张勇段磊１零件分析微电机端盖（图１）材料为镀锌薄钢板，厚度为０．８ｍｍ。由图１可知，该端盖属于中间带凸缘的冷图１冲件，其尺寸和位置精度要求较高，轴承室... Micro-motor end cover mold design and processing technology 100022 Beijing University of Technology Ruanzhong Yan Cao Guirong 100027 Beijing Institute of Mechatronics Wang Chunsheng Zhang Yong Duan Lei 1 parts analysis Micro motor cover (Figure 1) made of galvanized steel sheet, a thickness of 0.8mm . As can be seen from Figure 1, the end cover belongs to the middle of the flange with a cold stamping 1 pieces, the size and location of the higher precision, bearing ...