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주성민,방희선,한준의,김경학,안병호,Joo, Sung-Min,Bang, Hee-Seon,Han, Jun-Ui,Kim, Kyoung-Hak,Ahn, Byoung-Ho 대한용접접합학회 2013 대한용접·접합학회지 Vol.31 No.4
Nowadays, the weight lightening of automotive is required as conserving the environment has become a major worldwide issue. To solve this issue, various researches for the use of light materials(Alalloy, Mgalloy)and ultra high strength steel as substitutes of the current structural material have been carried out. Application of laser stitch welding to the assembly of automotive produces improvement in strength, lightening of body, higher fuel efficiency, lower production cost as well as reduction in assemble line due to its fast welding speed, superior accessible and weld quality. This process overcomes the shortcomings of the current resistance spot welding such as high electricity consumption, electrode replacement, and economical, technical limitation in design and production method of automotives.