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Formability and Dimensional Characteristics of Stretch-Drawn Beryllium-Copper Sheet Products

극박판의 인장-드로잉 성형에서의 제품품질 비교

  • 이기성 (서울과학기술대학교 산업대학원 정밀기계공학과) ;
  • 정완진 (서울과학기술대학교 제품설계금형공학과) ;
  • 김종호 (서울과학기술대학교 제품설계금형공학과)
  • Received : 2011.05.20
  • Accepted : 2011.07.07
  • Published : 2011.08.01

Abstract

A beryllium copper alloy(C1720) sheet was stretch-drawn using different processes. A hemispherical punch was first used and the forming behavior was examined. Then, cylindrical cups with a hemispherical head were produced by either one-step drawing or two-step forming(sequential stretch forming-drawing). The one-step drawing showed the better formability than two-step forming. However, the two-step forming was the superior process in terms of attaining shape accuracy.

Keywords

References

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