Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Feasibility Study on Three-Dimensional Backward Tracing Scheme of Rigid-Plastic Finite Element Analysis

강-서성 유한요소 해석에서의 3차원 역추적 기법에 관한 연구

  • 이진희 (부산대학교 정밀정형 및 금형가공 연구센터) ;
  • 강범수 (부산대학교 정밀정형 밀 금형가공 연구센터) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공 연구센터)
  • Published : 1995.09.01
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Abstract

Preform design is one of the critical fields in metal forming. The finite element method(FEM) has been effective in designing preforms and process sequence, for which the backward tracing scheme of the rigid-plastic FEM has been explored. In this work a program using the backward tracing scheme by the rigid-plastic FEM is developed for three-dimensional plastic deformation, which is an extension of the scheme from two-dimensional cases. The calculation of friction between workpiece and die, and handling of boundary conditions during backward tracing require sophisticated treatment. The developed program is applied to upsetting of a rectangular block and to side pressing of a cylindrical workpiece. The results of the two applications show feasibility of the program on three-dimensional plastic deformation.

Keywords

References

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