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자동차 에어백 Housing Lower의 냉간 박육장출성형
박민철(M. C. Park),강재영(J. Y. Kang),김동환(D. H. Kim),김영환(Y. H. Kim),안치규(C. K. An),김병민(B. M. Kim) 한국소성가공학회 2012 한국소성가공학회 학술대회 논문집 Vol.2012 No.10
Recently, the automotive airbag is applied small cars, as well as luxury cars. Housing lower part automotive air bag important components, and is manufactured through cold forging of the second stage. Concentricity and thickness control of housing lower part is important. Concentricity and thickness is not uniform, if there is a problem when the explosion. Therefore, in this study, the finite element analysis through the problems to solve. Concentricity resolved from the companies, but the thickness was not resolved. As a fundamental study, uniform in thickness in order to the selected design parameters that affect the process when finite element analysis was performed. Through finite element analysis could be obtained the product to the desired thickness.
박민철(M. C. Park),박세제(S. J. Park),노정섭(J. S. No),박영규(Y. K. Park),강재영(J. Y. Kang),김동환(D. H. Kim),김병민(B. M. Kim) 한국소성가공학회 2012 한국소성가공학회 학술대회 논문집 Vol.2012 No.5
The area of contact between the punch and material are important in the piercing process. Depending on which punch constitution will influence the life of the die or punch, the piercing force, the unloading force and the dimensional precision. Therefore, this piercing process need the optimal die design and working conditions determined by punch type. In this study, the possibility of using the finite element method(FEM) was investigated to analyze the sheared surface in piercing process by using 2D&3D-FEM.