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Development of a Roll-Forming Process of Linearly Variable Symmetric Hat-type Cross-section

좌우 대칭 모자형 단면이 길이 방향으로 선형적으로 변하는 롤 포밍 공정의 개발

  • Kim, Kwang-Heui (Department of Mechanical Design Engineering, Pukyong National UNIV.) ;
  • Yoon, Moon-Chul (Department of Mechanical Design Engineering, Pukyong National UNIV.)
  • 김광희 (부경대학교 기계설계공학과) ;
  • 윤문철 (부경대학교 기계설계공학과)
  • Received : 2015.05.22
  • Accepted : 2015.06.24
  • Published : 2015.08.31

Abstract

The roll-forming process is a highly productive incremental forming process and is suitable for manufacturing thin, high-strength steel products. Recently, this process has been considered one of the most productive processes in manufacturing high-strength steel automotive structural parts. However, it is very difficult to develop the roll-forming process when the cross-sectional shape of the product changes in the longitudinal direction. In this study, a roll-forming process for manufacturing high-strength steel automotive parts with a linearly variable symmetric hat-type cross-section was developed. The forming rolls were designed by the 3D CAD system, CATIA. Additionally, the designed forming rolls were modified by the simulation through the 3D elastic-plastic finite element analysis software, MARC. The results of the finite element analysis show that the final roll-forming roll can successfully produce the desired high-strength steel automotive part with a variable cross-section.

Keywords

References

  1. Kim, K. H. and Shim, H. B., "Development of a Roll forming Process of Linearly Variable Symmetric U-type Cross-section", Proc. of the KSTP Spring Conference 2015, pp. 195-198, 2015.
  2. Kim, K. H. and Yoon, M. C., "Finite Element Analysis of the Extrusion Process for an Automobile Bumper", J. KSMPE, Vol. 4, No. 1, pp. 24-29, 2005.
  3. Kim, K. H. and Sim, S. B., "Development of Roll Forming Process for an Automotive Part of High Strength Steel", J. KSMPE, Vol. 4, No. 3, pp. 45-50, 2005.
  4. Kim, K. H. and Kim, B. T., "Finite Element Analysis of the Roll Forming Process using the Solid Elements", Proc. of the KSMPE Autumn Conference 2006, pp. 151-154, 2006.
  5. Kim, K. H. and Yoon, M. C., "Measurement of Longitudinal Strain in the Roll Forming Process", Proc. of the KSMPE Autumn Conference 2006, pp. 147-150, 2006.

Cited by

  1. Design of forming rolls for a high strength steel automotive body part with locally variable cross-section vol.19, pp.1, 2018, https://doi.org/10.1007/s12541-018-0011-5
  2. Smart Roll Forming Based on Real-Time Process Data vol.17, pp.5, 2018, https://doi.org/10.14775/ksmpe.2018.17.5.045
  3. 길이방향을 따라 선형 대칭적으로 변하는 좌우대칭 U형 단면을 가진 제품의 포밍 롤 설계 vol.15, pp.4, 2015, https://doi.org/10.14775/ksmpe.2016.15.4.073
  4. 길이방향을 따라 선형 대칭적으로 변하는 좌우대칭 U형 단면을 가진 제품의 포밍 롤 설계 vol.15, pp.4, 2015, https://doi.org/10.14775/ksmpe.2016.15.4.073