Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Process Design of Multi-pass Shape Drawing Considering the Drawing Stress

인발응력을 고려한 다단 형상인발 공정설계

  • 김성민 (부산대 대학원 정밀가공시스템 전공) ;
  • 이상곤 (한국생산기술연구원 녹색전환기술센터) ;
  • 이찬주 (부산대 대학원 정밀가공시스템 전공) ;
  • 김병민 (부산대 기계공학부) ;
  • 정명식 (한국생산기술연구원 녹색전환기술센터) ;
  • 이선봉 (계명대 기계자동차공학부)
  • Received : 2012.05.21
  • Accepted : 2012.06.20
  • Published : 2012.07.01
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Abstract

In this study, a process design method for the multi-pass shape drawing is proposed with consideration of the drawing stress. First, the shape drawing load was calculated to evaluate the shape drawing stress, and the intermediate die shape was determined by using an electric field analysis and the average reduction ratio. In order to evaluate whether material yielding occurs at the die exit, the drawing stress was determined by using the calculated shape drawing load. Finally, FE-analysis and shape drawing experiments were conducted to validate the design of the multi-pass shape drawing process. From the results of the FE-analysis and shape drawing experiments, it was possible to produce a sound shape drawn product with the designed process. The dimensional tolerances of the product were within the allowable tolerances.

Keywords

References

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