基于CAE双动拉延成形对冲压成本影响的分析
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摘要
在汽车大型板件冲压工艺设计时,通常采用的冲压工艺为单动拉延成形,即模具结构采用单压边圈的形式。双动拉延成形是拉延成形的另一种方式,通过增加上型一个压边圈及相应压力源等结构,改善零件成形性,降低材料尺寸。介绍了双动拉延成形的原理及模具结构,结合实际生产案例,通过对双动拉延工艺的特点分析,阐述如何通过双动拉延工艺降低零件的制造成本,提高了经济效益。
When design the stamping process of automobile large sheet metal parts,the stamping process usually uses the single action draw that means the die structure adopts the single blank holder.Double action draw is another way.By increasing an upper blank holder and corresponding pressure source,the formability of the parts is improved and the size of the material is reduced.In this paper,the forming principle and die structure of the double action draw method were introduced.Combined with a practical case,how to reduce the manufacturing cost of parts and improve economic efficiency by use double action draw method were illustrated through the analysis of double action draw's characteristics.
When design the stamping process of automobile large sheet metal parts,the stamping process usually uses the single action draw that means the die structure adopts the single blank holder.Double action draw is another way.By increasing an upper blank holder and corresponding pressure source,the formability of the parts is improved and the size of the material is reduced.In this paper,the forming principle and die structure of the double action draw method were introduced.Combined with a practical case,how to reduce the manufacturing cost of parts and improve economic efficiency by use double action draw method were illustrated through the analysis of double action draw's characteristics.
引文
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[2]郑璇.浅谈冲压拉延模具单双动的特点及其改制方案[J].科学之友,2011(10):36-37.
[3]王俊杰,孟凡林,张华,等.上下双压边圈在拉伸模中的应用[J].模具制造,2018(6):33-35.
[4]马云龙.单、双动拉延模具改造可行性分析[J].汽车工艺与材料,2017(4):54-58.
[5]张巧巧.汽车冲压模具降低成本的思路与措施[J].内燃机与配件,2018(9):127-128.
[6]汪文奇.汽车冲压模具降低成本的思路和措施[J].汽车工艺与材料,2015(12):58-61.
[7]丁海涛,任小刚.浅析汽车冲压件降成本的几种方法[J].汽车使用技术,2016(6):145-146.
[8]黄伟男,吕进.汽车车身冲压件材料利用率提升方法探讨[J].模具技术,2017(6):43-47.