복잡한 형상의 압출금형 곡면의 자동생성

Automatic Surface Generation for Extrusion Die of Complicated Sections

  • 임종훈 (대진대학교 기계설계공학과 대학원) ;
  • 유동진 (대진대학교 컴퓨터응용기계설계학과) ;
  • 권혁홍 (대진대학교 기계설계공학과) ;
  • 양동열 (한국과학기술원 기계공학과)
  • 발행 : 2003.10.01

초록

An automatic surface construction method based on B-spline surface and scalar field theory is proposed to generate the extrusion die surface of complicated sections in this paper. The isothermal lines and stream lines designed in the scalar field are introduced to find the control points which are used in constructing B-spline surfaces. Intersected points between the isothermal lines and stream lines are used to construct B-spline surfaces. The inlet and outlet profiles are precisely described with B-spline curves by using the centripetal method for uniform parameterization. The extrusion die surface is generated by using the cubic curve interpolation in the u- and v-directions. A quantitative measure for the control of surface is suggested by introducing the tangential vectors at the inlet and outlet sections.

키워드