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1. 发明公开

KR1020020005076A 외경에 단차를 발생시키지 않고 높이의 정밀도가 우수한,절단면에 경사단면을 형성킬 수 있는 프로그레시브 금형에있어서의 트리밍 공법 无效
标题翻译：渐进模具中的切割方法不会在外部直径上产生研究，并且显示出高精度的优异性
公开(公告)号：KR1020020005076A
公开(公告)日：2002-01-17
申请号：KR1020000038000
申请日：2000-07-04
申请人： 주식회사 태진다이텍
发明人： 차태진
IPC分类号： B21D22/30
摘要： PURPOSE: Provided is a trimming method in a progressive mold which doesn't generate graduation at external diameter and shows excellence in the exactness of height so that it improves the exactness of products. CONSTITUTION: The trimming method in the progressive mold comprises the steps of: (i) compressing an upper side of a flange by a punch(4) to make internal curvature be zero for keeping a molding height in uniform; (ii) enlarging a gap(C1) between the punch and a die(6) to be wider than a common mold; (iii) giving a gap(C2) between the die and a product(5); (iv) pressing the upper side of the flange by the punch to push a wall into the die for causing cracks around the products; and (v) lowering the punch to graduate the cracks for causing fracture.
摘要翻译：目的：提供一种渐进式模具中的修整方法，其不会在外径处产生刻度，并且显示出高度的精确性，从而提高产品的精确度。构成：渐进式模具中的修整方法包括以下步骤：（i）通过冲头（4）压缩凸缘的上侧以使内部曲率为零以保持模制高度均匀; （ii）将冲头和模具（6）之间的间隙（C1）扩大到比普通模具更宽; （iii）在模具和产品（5）之间产生间隙（C2）; （iv）通过冲头将法兰的上侧压入以将壁推入模具中以在产品周围产生裂缝; 和（v）降低冲头以使裂纹发生断裂以造成断裂。

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