Springback behavior of tailor rolled blank in U-shape forming
Springback behavior of tailor rolled blank in U-shape forming作者机构:State Key Laboratory of Rolling&AutomationNortheastern UniversityShenyang 110819LiaoningChina School of Materials Science and EngineeringNortheastern UniversityShenyang 110819LiaoningChina
出 版 物:《Journal of Iron and Steel Research International》 (Journal of Iron and Steel Research, International)
年 卷 期:2017年第24卷第8期
页 面:787-794页
核心收录:
学科分类:080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学(可授工学、理学学位)] 080201[工学-机械制造及其自动化]
基 金:This research was supported by the POSCO and by the World Class University (WCU) program through the National Research Foundation (Grant#R32-10147). MGL appreciate the support by the National Research Foundation of Korea (ERC Program Grant #2012R1A5A1048294)
主 题:Tailor rolled blank Springback angle Elastic recovery Tangential stress Tangential strain
摘 要:The springback of tailor rolled blanks with quenching and partitioning steels was *** order to find out the springback behavior and related influence factors for the novel sheets,both experimental and simulation methods have been used to compare and analyze the springback characteristics of equal thickness blanks and tailor rolled blanks in U-channel *** the results,the overall springback angles of tailor rolled blanks at thin and thick sides are respectively 106.79° and 99.705°,which are both lower than those of the corresponding equal thickness *** to the existence of the thickness transition zone,the stress distribution in thin and thick sides of blanks is *** location of dangerous region in thin side of tailor rolled blanks is closer to the end of side,and the thick side moved to the middle of straight wall,which are different with the equal thickness ***,the released quantitles of tangential stress and strain per unit section of blank are adopted to calculate relative springback angles and give novel evaluation criteria for qualitatively analyzing the amount of springback *** comparing the results,it shows that the tangential strain method is more suitable for the actual situation.