• Title/Summary/Keyword: Output(OP) Shaft

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Development of cold forging process for OP shaft and the improvement of forgeability of SNCM steel (OP shaft용 냉간 단조 성형 공정 개발 및 SNCM강의 단조성 향상에 관한 연구)

  • 이광오;제진수;강성수;전만수;남원수
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2002.05a
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    • pp.141-144
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    • 2002
  • 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, Finite element Method are accomplished, and to verify the validity of proposed heat treatment cycle, several experiments(Hardness test, Observation of optical microstructures, tensile test) are carried out.

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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;진민호;제진수;남원수;강성수
    • Transactions of Materials Processing
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    • v.12 no.5
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    • pp.473-478
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    • 2003
  • 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.

RESEARCH ON THE IMPROVEMENT OF FORGEABILITY OF SNCM STEEL

  • Park I.W.;Jung D.J.;Je J.S.;Joun M.S.;Kang S.S.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2003.10b
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    • pp.80-85
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    • 2003
  • 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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