Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Evaluation and Process Analysis of the Superalloy Friction Welding for Large Shaft

초내열합금의 대형마찰용접 공정해석 및 평가

  • 정호승 (한국해양대학교 대학원 기계공학과) ;
  • 김윤환 (한국해양대학교 대학원 기계공학과) ;
  • 조종래 (한국해양대학교 기계정보공학부) ;
  • 박희천 ((주)케이에스피) ;
  • 이낙규 (한국생산기술연구원)
  • Published : 2004.10.01
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Abstract

Friction welding was used to weld the turbine wheel and shaft and have a good welding quality. Friction welding was conducted an the two dissimilar material, Nimonic 80A and SNCrW. The control of friction welding process parameter such as flywheel energy, interface temperature, amount of upset have an effect on the mechanical properties of the welded joint. FE simulation can be a useful tool to optimize the weld geometry and process parameters. Flash shape and thickness weld is consistent with the simulated results. Process analysis was performed by the commercial code DEFORM 2D. Mechanical property of weld joints was evaluated by microstructure, chemical component, tensile, impact, hardness test so on.

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