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롤 포밍 공법을 이용한 고강도 차체 부품 제작 기술 개발
김동규(D. K. KIM),박상언(S. E. Park),조국래(K. R. CHO),이규현(K. H. Lee),김광희(K. H. KIM),이문용(M. Y. Lee) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.10
The roll forming process is often used to manufacture long, thin-walled products such as a pipe. The final cross-section is a comparatively simple open-channel, a closed tube section or a complex profile with several bends. In recent years, that process is often applied to the bumper beam in the automotive industries. In this study, a optimal Center Floor Cross Member 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.
김동규(D. K. KIM),조국래(K. R. CHO),박상언(S. E. PARK),이규현(K. H. Lee),문영훈(Y. H. MOON),이문용(M. Y. Lee) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.10
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 playa 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 beam in the automotive industries. In this study, a optimal front bumper back 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.