现代制造工程Issue(3)：68-72,5.
高强钢板U形件热冲压技术及有限元分析
Hot stamping for U-shape of high strength steel and finite element analysis
段磊 1沈琦 1门长峰 1乔小燕 1于强 1张洋1
作者信息
摘要
Abstract
Hot stamping of high strength steel is a new technology to solve the defects of cold stamping. The hot stamping finite element model of the U shape is established to obtain the blank temperature,thickness and stress distribution and study the influence to the temperature and stress distribution after hot stamping coursed by the initial blank and die temperature coupled thermo-mechanical analysis method. The results show that the temperature drops slowly in U shape holding area and fillet, quickly in the center area and two lateral walls. The thinning is large in the two lateral wall and fillet. The largest stress is in the fillet of the punch and the minimum stress is in the holding area and bottom center area. If the die initial temperature is unchanged, as follow as the blank initial temperature increasing, the minimum temperature and the maximum strain of the part after stamping will increase, the minimum thickness and the maximum stress will decrease. If the blank initial temperature is unchanged,as follow as the die initial temperature increasing,the minimum temperature and the maximum strain of the part after stamping will increase, and the minimum thickness and the maximum stress will decrease.关键词
高强钢板/U形件/热冲压/有限元分析Key words
high strength steel/U shape/hot stamping/finite element analysis分类
矿业与冶金引用本文复制引用
段磊,沈琦,门长峰,乔小燕,于强,张洋..高强钢板U形件热冲压技术及有限元分析[J].现代制造工程,2013,(3):68-72,5.
