소성∙가공 (Transactions of Materials Processing)

  • 제13권4호
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  • Pages.359-364
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  • 2004
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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연성파괴를 고려한 6각 피팅 너트 예비성형체 설계

Design of Hexagonal Fitting Nut Preform Considering a Ductile Fracture

  • 김동환 (진주국제대학교 자동차공학과) ;
  • 이정민 (부산대학교 정밀기계공학과 대학) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공 연구소)
  • 발행 : 2004.07.01
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초록

In the multi-stage former, a manufacture of hexagonal fitting nut was generated in a defective products about 70∼80% in the industry field. Products generated in defects manufactured to be a machining about 60%. Additional process increased a product cost and decreased a product rate. Therefore, it is important to predict and design a preform reducing defective products in the early stage of process design. So in the study Defects for manufacturing hexagonal fitting nut verified a cause through the finite element simulation. To reduce a defective generation. a preform designed and a designed preform verified through the finite element simulation. In conclusion, a generated defects when a hexagonal fitting nut manufactured should reduce if a round dimension of preform reduced and a part of opposition angle distributed in plenty a volume.

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참고문헌

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