Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Development of Cold Forging Process for OP Shaft and Improvement of Forgeability of SNCM Steel

OP Shaft용 냉간 단조 성형 공정 개발 및 SNCM강의 단조성 향상에 관한 연구

  • 이광오 (부산대학교 정밀기계공학과 대학원) ;
  • 진민호 (부산대학교 정밀기계공학과 대학원) ;
  • 제진수 (경상대학교 수송기계 공학부) ;
  • 남원수 (현대자동차 소재금형기술부) ;
  • 강성수 (부산대학교 정밀기계공학과)
  • Published : 2003.08.01
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Abstract

This study presents the enhancement of forgeability of SNCM522H materials. Target parts are output shaft(OP shaft) used as components of power train for automobiles. To carry out cold forging process of OP shaft by 1 pass instead of existing 2 pass process, studies in terms of process design and heat treatment were performed. To introduce the new process, the finite element method was accomplished, and to assess the validity of proposed heat treatment cycle, several experiments(hardness test, observation of optical microstructures, tensile test) were carried out. The 2Pass forging process could be reduced as lPass process through improvement of process and heat treatment technology and that would give cost reduction.

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References

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