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이광석(K.S. Lee),김창원(C.W. Kim),변상윤(S.Y. Pyun),이정환(J.H. Lee) 한국소성가공학회 2011 한국소성가공학회 학술대회 논문집 Vol.2011 No.5
Prediction of temperature distribution and subsequent permanent deformation over the SS400 carbon steel plate during the induction-based line heating process is analyzed by a numerical method by three-dimensional electromagnetic-thermal-structural coupling analysis. The numerical study reveals that the amount of permanent deformation is strongly related to the Joule loss upon different process conditions such as input power and moving speed of the heat source.
고주파 유도 가열에 의한 후판 멀티패스 선상가열 유기 변형 특성
엄득하(D. H. Eom),이광석(K. S. Lee),김창원(C.W. Kim),변상윤(S.Y. Pyun),김병민(B. M. Kim),이정환(J. H. Lee) 한국소성가공학회 2011 한국소성가공학회 학술대회 논문집 Vol.2011 No.10
In this study an approach, based on three-dimensional electromagnetic-thermal-structural coupling numerical analyis, was utilized for the prediction of temperature distribution and subsequent permanent deformation over the SS400 carbon steel plate during the induction-based line heating process. Also experimental line heating was carried out by applying newly designed laboratory-scale high frequency (HF) induction heating (IH) equipment capable of bending thick plate with the moving accuracy of ±0.1 mm in heating coil position. The comparison of the numerical calculation with corresponding experimental results showed a very good correlation. The amount of permanent deformation was obviously increased upon decreasing moving speed and increasing input power adopted in this study. Furthermore, the influence of secondary line heating upon the curvature of the workpieces is also discussed.