Transactions of Materials and Heat Treatment

Title：Effect of hemming angle on dimensional deviation during roller hemming process

Authors： WU Jun-tang ZHAO Yi-xi LI Shu-hui XI Sheng-yin WANG Bin-feng WANG Wu-rong

Unit： Shanghai Jiao Tong University Shanghai Volkswagen Automotive Co. Ltd. Shanghai University

KeyWords： roller hemming hemming angle dimensional deviation roll-in roll-out

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2010,35(3):29-33

Abstract：

Robot roller hemming is a new technology in auto industry. It's mainly used to join inner and outer closures panels, such as car doors and deck lids. Since these closures are exterior autobody components, smooth fitting and uniform gaps between assembled components are critical concerned. The dimensional defects appeared in hemming process, namely roll-in and roll\|out, could affect assembly accuracy. The experimental results show that dimensional deviation is more serious at the free edges than in the middle of the parts. Moreover, the profile tends to roll in during the first hemming step, while roll out during final hemming. And bigger hemming angle incremental in the last step may cause lager roll\|out.

Funds：

国家863计划资助项目（2007AA04Z145）；上海汽车工业科技发展基金（0804）

Reference：

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