Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Prediction of Defect Formation in Ring Rolling by the Three-Dimensional Rigid-Plastic Finite Element Method

3차원 강소성 유한요소법을 이용한 환상압연공정중 형상결함의 예측

  • 문호근 (FAC베어링코리아(유) 연구소) ;
  • 정재헌 (FAC베어링코리아(유) 연구소) ;
  • 박창남 (FAC베어링코리아(유) 연구소) ;
  • 전만수 (경상대학교 기계항공공학부)
  • Published : 2004.10.01
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Abstract

In this paper, defect formation in ring rolling is revealed by computer simulation of ring rolling processes. The rigid-plastic finite element method is employed for this study. An analysis model having relatively fine mesh system near the roll gap is used for reducing the computational time and a scheme of minimizing the volume change is applied. The formation of the central cavity formation defect in ring rolling of a taper roller bearing outer race and the polygonal shape defect in ring rolling of a ball bearing outer race has been simulated. It has been seen that the results are qualitatively good with actual phenomena.

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References

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