摘要..................................................(1)ABSTRACT..............................................(1)第一章绪论与概述.........................................(2)............................(2)..........................(3)第二章冲裁理论与主要计算.................................(4)...........................................(4).........................................(5)...........................................(6).......................(8)................................(10).................................(11)................................(11).....................................(12)....................................(12).......................................(12).................................(12)....................................(12)第三章模具设计........................................(12)............................................(12)—.........................................(13)......................................(13)......................................(14)......................................(14)........................................(14)..............................................(16).......................................(19)
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