<P>刚才那是一篇文章的题目,下面是第一段概要,谢谢大家</P>
<P>Abstract<BR> The Center carrier-type progressive die for U-bending sheet metal production part is a very specific division. This study reveals the sheet metal forming process with multi-forming die by Cut off type feeding system.<BR> Through the FEM simulation by DEFORM, it was accepted to U-bending process as the first performance to design of strip process layout.<BR> The next process of die development was studied according to sequence of die development, i.e. die structure, machining condition for die making, die materials, heat treatment of partially die components, know-how and so on.<BR> The feature of this study is the die development of scrapless progressive die of multi-stage through the Modeling on the I-DEAS program,components drawing on the Auto-Lisp, CAD/CAM application, ordinary machine tool operating and revision by tryout.<BR>© 2004 Published by Elsevier B.V.<BR>Keywords: Center carrier type progressive die; FEM simulation; Strip process layout; Scrapless progressive die; U-bending process; Tryout</P> |