目录摘要············································································································3前言·············································································································41.弯曲工艺性分析···························································································51.1分析零件的冲压工艺性并确定工艺方案························································51.2弯曲件的工艺性······················································································51.3最小相对弯曲半径的确定··········································································62.弯曲件的结构工艺性分析···············································································82.1.最小弯曲半径························································································82.2.弯曲件形状与尺寸的对称性······································································83.改进零件的结构设计·····················································································93.1采用热处理工艺······················································································93.2从模具结构采取措施················································································94.弯曲工艺力的计算······················································································114.1.自由弯曲时的弯曲力的计算公式：····························································114.2.校正弯曲时的弯曲力···········································································114.3顶件和压料力····················································································124.4.压力机吨位的确定·················································································125.毛坯尺寸及回弹量的计算的计算····································································...
