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http://dx.doi.org/10.5228/KSPP.2003.12.2.142

Investigation on the Description Method of Extrusion Die Surface using B-Spline Surface Scheme  

유동진 (대진대학교 컴퓨터응용기계설계학과)
임종훈 (대진대학교 기계설계공학과)
Publication Information
Transactions of Materials Processing / v.12, no.2, 2003 , pp. 142-150 More about this Journal
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.
Keywords
B-Spline Surface; Knot Vectors; Tangential Vectors; Extrusion Die Surface;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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