소성∙가공 (Transactions of Materials Processing)

  • 제19권8호
  • /
  • Pages.508-516
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  • 2010
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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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증육된 벽부를 가진 더블 싱크 제품의 프로그레시브 금형 설계

Progressive Die Design for a Component of Double Sinks with Locally Thickened Wall

  • 장원석 (부산대학교 대학원 정밀가공시스템) ;
  • 최홍석 (부산대학교 대학원 정밀가공시스템) ;
  • 이희도 ((주)신영 기술연구소) ;
  • 강신철 ((주)신영 기술연구소) ;
  • 안국찬 (진주산업대학교 자동차공학과) ;
  • 김병민 (부산대학교 기계공학부)
  • 투고 : 2010.10.12
  • 심사 : 2010.10.29
  • 발행 : 2010.12.01
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초록

Thickening process in sheet metal forming is being increased to improve the strength as well as to reduce manufacturing process such as welding. This process can make it possible to obtain part locally thicker than that of initial sheet thickness. In this study, design method for manufacturing the component which has double sinks with local thickened wall is proposed. Deep drawing and upsetting processes are applied in order to form double sinks and thicken its walls. Used material is SPHC440 with the thickness of 2.0mm and initial blank size is determined on the basis of the final product. Distance between the center of double sinks and first drawing ratio to avoid fracture are the most significant factors during deep drawing. FE-analysis is implemented in order to determine the appropriate values. Progressive die is designed based on the proposed method and FE-analysis. As a result of experiment, locally thickened component can be manufactured, which has double sinks with the thickness about 3mm at the corner and wall.

키워드

참고문헌

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피인용 문헌

  1. Design of a Hinge Bracket Forming Process Using Thick Plate vol.25, pp.4, 2016, https://doi.org/10.5228/KSTP.2016.25.4.227