|제목(국문)||가변 롤 성형 공정시 길이방향 변형률에 근거한 제품 형상 설계 기술 개발|
|제목(영문)||Development of Profile Design Method Based on Longitudinal Strain for Flexible Roll Forming Process|
,부산대학교 기계공학부/정밀정형 및 금형 가공 연구소
한상욱 (S. W. Han ,부산대학교 기계공학부 ) ▷공저자네트워크등록하기
신세계로 (SeGyeRo. Shin ,부산대학교 기계공학부 ) ▷공저자네트워크등록하기
문영훈 (Y. H. Moon ,부산대학교 기계공학과 ) ▷공저자네트워크등록하기
The use of roll-formed products increases every year due to its advantages, such as high production rates, reduced tooling cost and improved quality. However, till now, it is limited to part profiles with constant cross section. In recent years, the flexible roll forming process, which allows variable cross sections of profiles by adaptive roll stands, was developed. In this study, an attempt to optimize profile design for the flexible roll forming process was performed. An equation that predicts the longitudinal strain for part geometries with variable cross-sections was proposed. The relationship between geometrical parameters and the longitudinal strain was analyzed and investigations on the optimal profile design were performed. Experiments were conducted with a lab-scale roll forming machine to validate the proposed equation. The results show that the profile design method proposed in this study is feasible and parts with variable cross sections can be successfully fabricated with the flexible roll forming process.
|keyword||Flexible Roll Forming, Variable Cross Section, Profile Design, Longitudinal Strain|