Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Experimental Investigation on the Flow Control of Hub Clutch for Automobile

자동차용 허브 클러치의 유동제어에 관한 실험적 연구

  • 박종남 (부산대학교 대학원 정밀기계공학과) ;
  • 김동환 (부산대학교 정밀정형 및 금형가공연구소) ;
  • 김병민 (부산대학교 기계공학부)
  • Published : 2002.09.01
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Abstract

This paper suggests the new technology to control metal flow in orther to change of the cold forging from conventional deep drawing forming. This technology can be summarized the complex forming, which consists of bulk forming and sheet forming, and multi-action forging, which be performed double action press. The proposed technology is applied to hub clutch model which is part of auto-transmission for automobile. The purpose of this study is to investigate the material flow behavior of hub clutch through control the relative velocity ratio and the stroke of mandrel and punch using the flow forming technique. First of all, the finite element simulations are applied to analyse optimal process conditions to prevent flow defect(necking defect etc.) from non-uniform metal flow, then the results are compared with the plasticine model material experiments. The punch load for real material is predict from similarity law. Finally, the model material experiment results are in good agreement with the FE simulation ones.

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References

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  2. Development of Flow Forming Process for Hollow Shaped Parts from Seamless Steel Tube vol.20, pp.8, 2011, https://doi.org/10.5228/KSTP.2011.20.8.611
  3. Design of Hexagonal Fitting Nut Preform Considering a Ductile Fracture vol.13, pp.4, 2004, https://doi.org/10.5228/KSPP.2004.13.4.359