Transactions of Materials and Heat Treatment

Title：Research on hydraulic clamping device for stamping multi-gauge laser tailor-welded blanks

Authors： GUO Wei-gang1 WU Yi-ming2 LUO Xiao-ye1 ZHOU Shui-qin1(1.Fair Friend Institute of Electro-mechanics Hangzhou Vocational and Technical College Hangzhou 310018 China 2.IE Group China International Marine Containers(Group) Ltd. Shenzhen 518067 China)

Unit：

KeyWords： fracture welded-line movement tailor-welded blank hydraulic clamping device

ClassificationCode：TG386

year,vol(issue):pagenumber：2008,33(5):44-47

Abstract：

Fracture and welded-line movement are two main problems in stamping of multi-gauge laser tailor-welded blanks.Welded-line movement was analyzed in plastic mechanics.Hydraulic clamping device was designed to improve the formability of tailor-welded blanks.The principle of hydraulic clamping device was explained too.With the experiment of tailor-welded blank stamping for door inner,results of welded-line movement and thickness changing were summarized.Hydraulic clamping device was used in the experiment which was compared with that without hydraulic clamping device.The result of experiment shows that the hydraulic clamping device can restrain the welded-line movement and reduce the thinning of thin sheet material.So the hydraulic clamping device improves the formability of tailor-welded blanks.

Funds：

国家自然科学基金资助项目(50475125);; 2008年度院级青年专项课题(2008-2-002)

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