According to the side cover structure characteristics of table model computer box, determined the progressive die and the single operation die.
根据台式电脑机箱侧盖的结构特性，确定了级进模与单工序模相结合的工艺方案。
Use constructional type of progressive dies, change present one step operation of single die construction for two-step blanking, i. e, first step semi-blanking, second ejecting material.
用级进模结构形式，改现行简单模结构的一工步操作的冲裁为两工步操作：第一工步为半冲裁，第二工步为推料。
Use constructional type of progressive dies , change present one step operation of single die construction for two-step blanking , i.
用级进模结构形式，改现行简单模结构的一工步操作的冲裁为两工步操作：第一工步为半冲裁，第二工步为推料。
Use constructional type of progressive dies , change present one step operation of single die construction for two-step blanking , i.
用级进模结构形式，改现行简单模结构的一工步操作的冲裁为两工步操作：第一工步为半冲裁，第二工步为推料。
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