Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A UBET Analysis of the Extrusion/Forging Process of Polygonal Headed Bars

다각형의 머리를 가진 봉의 압출/단조 공정에 관한 UBET 해석

  • 김명훈 (부산대학교 대학원 정밀기계공학과) ;
  • 황범철 (부산대학교 대학원 정밀기계공학과) ;
  • 김호윤 (부산대학교 대학원 정밀기계공학과) ;
  • 배원병 (부산대학교 기계기술연구소)
  • Published : 1999.09.01
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Abstract

A new KAVF(kinematically-admissible velocity field) is proposed to determine the forming load, the average extruded length and the flow pattern is the extrusion/forging process of polygonal headed bars. Experiments are carried out with lead billets at room temperature using regular polygonal shaped punches. The theoretical predictions of the forming load and the average extruded length are in good agreement with the experimental results.

Keywords