机械5

第一章压力机的选择·············································1 1.1压力机的选择原则················································1 1.2计算精冲压力····················································1 1.3选择压力机······················································2 1.4压力机主要性能参数··············································2 1.5降低冲裁力的方法················································2 第二章模架初步设计·············································5 第三章冲裁·····················································6 3.1冲裁断面质量····················································6 3.2冲裁间隙························································6 3.3冲裁件的排样与搭边··············································9 3.4冲裁模凸、凹模刃口尺寸计算······································11 3.5模具压力中心的计算·············································15 第四章冲裁主要零部件结构设计··································16 4.1工作零件的设计·················································16 4.2定位零件的设计·················································17 4.3模架···························································17 第五章常用模具钢的一般性能要求································18 5.1冲压模具钢的一般性能要求·······································18 5.2常用冲压模具钢种类·············································18 谢辞······························································20 参考文献··························································21