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장길수(Chang Gill-Soo),김경완(Kim Kyung-Wan) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
The Friction Stir Weld (FSW) has been prevailing in the rolling stock manufacturers now a day especially in Europe and Japan, that will be an inevitable welding method in Korean domestic railway industry in the near future. The Welding Institute (TWI) in United Kingdom (UK), who has the right of international patents, invented FSW. To meet the recommendation of Cullen"s Report for Ladbroke Grove Rail Inquiry (LGRI) in UK, the FSW is considering for the only alternative welding method to improve the aluminium welding quality, i.e. for improve unzipping defect and crashworthiness on car body in Europe Railways within Railway Safety Research Program.
윤시영(Yun Si-Yeong),장길수(Chang Gill-Soo),배원학(Bae Won-Hak) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
Stainless steel body of commuter train has been assembled using resistance spot welding. However, indent mark at each spot and deformation of the out side skin plate often lowers the appearance quality of the car body. To solve the these problems, authors carried out studies on applying laser welding to lap joints between skin plates and stiffeners. As the results of the study it was confirmed that the laser weld has sufficient strength, standing comparison with the resistance spot welding.