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실험계획법을 이용한 STS301L 이음재의 GMA 용접 자동화에 관한 연구
백승엽,손일선,Baek, Seung-Yeb,Sohn, Il-Seon 대한용접접합학회 2010 대한용접·접합학회지 Vol.28 No.4
Stainless steel sheets are widely used as the structural material for the railroad cars and the commercial vehicles. These kinds structures used stainless steel sheets are commonly fabricated by using the GMAW (gas metal arc welding). For fatigue design of GMA welded joints such as fillet and plug, ring type joint, it is important to obtain optimum design factor information on GMA welded joints. in this paper, analysis approach for fatigue test using design of experiment are evaluated optimum factor in GMA welded joint type and geometrical parameters of materials. Using these results, that factors applied to fundamental information for fatigue design.
자동차용 알루미늄 5185-폴리프로필렌 샌드위치 판재의 성형성
김기주,정효태,손일선,김철웅,김중배,Kim, Kee-Joo,Jeong, Hyo-Tae,Sohn, Il-Seon,Kim, Cheol-Woong,Kim, Joong-Bae 한국자동차공학회 2007 한국 자동차공학회논문집 Vol.15 No.2
The objective of this study was to develop formability evaluation techniques in order to apply aluminum sandwich panel for automotive body parts. For this purpose, newly adopting formability evaluation (using limit dome height and plane strain test) was carried out in order to secure the fundamental data for the measurement of sheet metal forming and the establishment of optimum forming conditions of the aluminum sandwich panel. The results showed that there were good agreements between the old formability evaluation method and the new method which was more simplified than that of old one. From the results of these formability evaluation, the formability of sandwich panel was higher than that of aluminum alloy sheet alone which was the skin component for the sandwich panel. Also, it was found that sandwich panel could reduce the weight and could have the same flexural rigidity simultaneously when it was compared to the automotive steel sheet.