Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Parametric Study of the Hemming Process by Finite Element Analysis

유한요소해석에 의한 헤밍 공정 변수연구

  • 김형종 (강원대학교 기계·메카트로닉스공학부) ;
  • 최원목 (강원대학교 대학원) ;
  • 임재규 (강원대학교 대학원) ;
  • 박춘달 (현대자동차 금형기술개발팀) ;
  • 이우홍 (현대자동차 금형기술개발팀) ;
  • 김헌영 (강원대학교 기계·메카트로닉스공학부)
  • Published : 2004.02.01
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Abstract

Implicit finite element analysis of the flat surface-straight edge hemming process is performed by using a commercial code ABAQUS/Standard. Methods of finite element modeling for springback simulation and contact pair definition are discussed. An optimal mesh system is chosen through the error analysis that is based on the smoothing of discontinuity in the state variables. This study has focused on the investigation of the influence of process parameters in flanging, pre-hemming and main hemming on final hem quality, which can be defined by turn-down, warp and roll-in. The parameters adopted in this parametric study are flange length, flange angle, flanging die corner radius, face angle and insertion angle of pre-hemming punch, and over-stroke of pre-hemming and main hemming punches.

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References

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Cited by

  1. A Study on Improvement of Bending Quality of Hemmed Plates in Sheet Metal Forming vol.29, pp.12, 2012, https://doi.org/10.7736/KSPE.2012.29.12.1360
  2. Numerical Evaluation of Hemming Defects Found on Automotive Door Panels vol.24, pp.4, 2015, https://doi.org/10.5228/KSTP.24.4.280