Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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A Study on the Forging of Spur Gears with Variation of Inner Diameter in Hollow Billets

중공소재의 재경 변화에 따른 스퍼어기어 단조에 관한 연구

  • 조해용 (충북대학교 정밀기계공학과) ;
  • 최재찬 (부산대학교 기계설계공학과) ;
  • 최종웅 (부산대학교 기계설계공학과) ;
  • 민규식 (마산전문대학 자동차과)
  • Published : 1995.09.01
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Abstract

A simulation method based on upper bound method is developed in order to characterize forging characters in forging of spur gears. In this paper, utilizing a kinematically admissible velocity field and applying it to investigate the effect of inner diameter of holow billet. In the analysis, to predict the variation of inner diameter of hollw billet, neutral surface has been introduced. The neutral surface of each step is assumed as a circle and determined in order to have minimum forging energy by golden section method. By this method, the variation of inner diameter of billet during spur gear forging is successfully predicted. As a result, the selection of inner diameter of initial billet is very important to reduce the forging load.

Keywords

References

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