江苏财经职业 技术学院 专科毕业设计说明书 山东建筑大学毕业设计说明书 I 目 录 摘要····································································Ⅲ ABSTRACT ····························································Ⅳ 1 前 言 1.1 课题的特点及研究意义 ·················································1 1.2 模具发展行业的研究现状 ················································1 1.3 课题设计思路及研究内容 ···············································2 2 工艺分析及计