Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A study on properties of sector gear for seat recliner

Seat recliner용 sector gear의 fine blanking에 관한 연구

  • 김창호 (동의대학교 기계공학부) ;
  • 강수호 (동의대학교 대학원 기계공학과) ;
  • 이관영 (부경대학교 학연협동 기계공학과) ;
  • 남기우 (부경대학교 기계공학과)
  • Received : 2009.11.24
  • Accepted : 2009.12.29
  • Published : 2010.02.28
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Abstract

This study was performed to solve the breaking problem in the fine blanking(FB) process of sector gears for car seat recliner using nickel chrome molybdenum steel(SNCM220) plate. The optimal design of embossing circle is changed to oval with labors' experiences and finite element analysis. The maximum principal stress and effective strain in a forming process are analyzed by commercial finite element software to solve the problems in embossing stage of FB process. As a result of FE analysis, the maximum principal stress in forming is lower than yield point of material. It is shown from experiments in the modified die that the formed gear does not break in embossing stage.

Keywords

References

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