Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Investigation on the Description Method of Extrusion Die Surface using B-Spline Surface Scheme

B-스플라인 곡면기법을 이용한 압출금형 곡면의 표현방법에 관한 연구

  • 유동진 (대진대학교 컴퓨터응용기계설계학과) ;
  • 임종훈 (대진대학교 기계설계공학과)
  • Published : 2003.04.01
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Abstract

To construct the extrusion die surface, a B-Spline surface scheme based on the cubic B-Spline curve interpolation method is proposed in the present work. The inlet and outlet profiles are described with B-Spline curves by using the centripetal method for uniform parameterization. The interior control points of surface are generated using the derivative characteristics of B-Spline curve. A complete B-Spline surface is constructed by using appropriate coordinate transformation and knot deletion. In the present study, a quantitative measure for the control of surface is suggested by introducing the tangential vector and inclination angles at the inlet and outlet sections. To verify the validity of the proposed method, automatic surface generation is carried out for the various types of extrusion die surface.

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References

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Cited by

  1. Automatic Surface Generation for Extrusion Die of Non-symmetric H-and U-shaped sections vol.12, pp.6, 2003, https://doi.org/10.5228/KSPP.2003.12.6.572
  2. Automatic Surface Generation for Extrusion Die of Arbitrarily Shaped Section using B-spline Surfaces and Scalar Field Theory vol.13, pp.1, 2004, https://doi.org/10.5228/KSPP.2004.13.1.033