RESEARCH ON THE IMPROVEMENT OF FORGEABILITY OF SNCM STEEL

  • Park I.W. (Forging Solution) ;
  • Jung D.J. (Hyundai Motor Company) ;
  • Je J.S. (Gyeongsang Nat. Univ.) ;
  • Joun M.S. (Gyeongsang Nat. Univ.) ;
  • Kang S.S. (Pusan Nat. Univ.)
  • Published : 2003.10.01

Abstract

This research represents enhancement of forgeability of SNCM522H steel. Output Shaft (OP Shaft) has been used as a subject for the study. OP Shaft is used as component of power train for automobiles. To develop I pass cold forging process instead of existing 2 pass process for OP Shaft, studies in terms of process design and heat treatment were performed. To verify the new process, CAE simulations were performed. And hardness test, microstructural analysis and tensile tests after heat treatment were carried out to evaluate the validity of proposed heat treatment cycle. The 2 pass forging process could be reduced as 1 pass process through improvement of process and heat treatment cycle.

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