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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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FE Analysis of Forging Process for Improving Tool Life in Hot Forging of CV Joint Outer Race

등속조인트 외륜 열간단조의 금형수명 향상을 위한 단조공정 유한요소해석

  • Kim, Yohng-Jo (School of Mechanical Engineering, Kyungnam University)
  • Received : 2014.03.18
  • Accepted : 2014.05.02
  • Published : 2014.06.30
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Abstract

During the hot forging process, the most common cause of tool failure is wear. Tool wear results in the gradual loss of part tolerances, after which eventually the tool must be replaced or repaired. In order to maximize the lifetimes of forging tools, it is important to investigate the wear mechanisms of these tools. In this study, the hot forging of the outer race of an automotive constant-velocity joint was analyzed by a finite element method to investigate the wear distribution, especially the amount and location of the maximum expected wear damage, using Archard's wear model, which was modified considering the forging temperature. Forging analyses were carried out after modifying blocker forging tools based on established versions. The modified blocker tools resulted in an increase in the tool life up to 31% with a finisher punch.

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References

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