Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Design of a Impeller Hub Cold Forging Process

토크 컨버터용 임펠러 허브의 냉간단조공정설계

  • Kim, Young-Suk (Dept.of Mechanical Engineering, Kyungpook National University) ;
  • Kim, Hyun-Soo (Dept.of Mechanical Engineering, Graduate School of Kyungpook National University) ;
  • Kim, Chan-Il (Dept.of Mechanical Engineering, Graduate School of Kyungpook National University) ;
  • Choi, Suk-Tak (woojin)
  • 김영석 (경북대학교 기계공학부) ;
  • 김현수 (경북대학교 기계공학부 대학원) ;
  • 김찬일 (경북대학교 기계공학부 대학원) ;
  • 최석탁 ((주)우진공업)
  • Published : 2000.11.01
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Abstract

A impeller hub is usually made through three forging processes : forward extrustion, upsetting and finishing. The finishing process is closed die forging in which the load increases abruptly at the final stage, resulting in underfilling in the finished product due to insufficient load capacity of the press. In this study, the rigid-plastic finite element analysis was applied to the impeller hub forging process in order to optimize process and to estimate required load. As a result, two kind of improvements for the process were suggested to reduce the load requirement in the finishing process.

Keywords

References

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