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김동규(D. K. KIM),유정수(J. S. RYU),박상언(S. E. PARK),이규현(K. H. LEE),김광희(K. H. KIM),이문용(M. Y. LEE) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5
In roll forming process, a sheet metal is continuously progressively formed into a product with required cross-section and longitudinal shape, such as a circular tube with required diameter, wall-thickness and straightness, by passing through a series of forming rolls in arranged in tandem. In this process, each pair of forming rolls installed in a forming machine play a particular role in making up the required cross-section and longitudinal shape of the product. In recent years, that process is often applied to the bumper rail in the automotive industries. In this study, a optimal Front Bumper Beam manufacturing technology, model deign and proper roll-pass sequences can be suggested by forming number of roll-pass and bending angle. And also effects of the process parameters on the final shape formed by roll forming defects were evaluated.