Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

FE analysis of Extrusion Process and Estimation of welding strength for Micro Multi Cell Tube with Serration

세레이션형 미세 멀티셀 튜브 압출 및 접합강도 평가

  • 이정민 (부산대학교 정밀기계공학과) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공연구소) ;
  • 조형호 (한국생산기술원 나노소재개발팀) ;
  • 강충길 (부산대학교 기계공학부)
  • Published : 2005.09.01
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Abstract

This paper describes a development of the extrusion process and estimation of the weldability for multi cell tubes used to cooling system of automobiles. A study on extrusion process is performed through the 3D FE simulation in non-steady state and extrusion experimentation. Also, nano-indentation test is employed to estimate the weldability of tubes. Especially, An evaluation of the weldability using the nano-indentation is accomplished as compared with nano-hardness in welded part and in the others. Finally, the pattern of the mandrel defection is investigated according to shapes of the porthole and/or chamber.

Keywords

References

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