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http://dx.doi.org/10.5228/KSPP.2003.12.2.151

Investigation on the Description Method of Extrusion Die Surface using NURBS Surface Scheme  

유동진 (대진대학교 컴퓨터응용기계설계학과)
임종훈 (대진대학교 기계설계공학과)
Publication Information
Transactions of Materials Processing / v.12, no.2, 2003 , pp. 151-160 More about this Journal
Abstract
In the present study, an advanced surface construction method based on NURBS surface scheme is proposed to construct the extrusion die surface. The inlet and outlet profiles we precisely described with NURBS curves using the cubic appropriate control points and weights. The interior control Points of surface are generated using the cubic interpolation of the weights at the inlet and outlet sections. In order to verify of the proposed method, automatic surface generation is carried out for the various types of extrusion die surface.
Keywords
NURBS Surface; Weights; Curved Die; Extrusion Die; Surface;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 V. Nagpal and T.Altan, 1975, "Analysis of the Three-Dimensional Metal Forming in Extrusion of Shapes with Use of Dual Stream Functions", Proc. 3rd North American Met. Res. Conf. Pittsburgh, Penssylvenia, pp. 26-40.
2 유동진, 임종훈, 2003, "B-스플라인 곡면 기법을 이용한 압출 금형 곡면의 표현 방법에 관한 연구", 한국소성가공 학회지, Submitted.
3 K.F. Celik and N.R Chitkara, 2002, "Extrusion of non-symmetric U and l-shaped sections through ruled-surfacc dies : numerical simulations and some experiments", Int. J. Mech. Sci., Vol. 44, pp. 217-246.   DOI   ScienceOn
4 V. Nagpal, 1977, "On the Solution of Three-Dimensional Metal Forming Processes", J. Eng. Ind. Trans. ASME Series B. Vol. 99, pp. 624-629.   DOI
5 N.R. Chitkara and K.F. Celik, 2001, "Extrusion of non-symmetric T-shaped sections, an analysis and some experiments", Int. J. Mech. Sci., Vol. 43, pp. 2961-2987.   DOI   ScienceOn
6 Les Piegl and Wayne Tiller, 1995, The NURBS Book, Springer.
7 J.S. Gunasekera, H.L. Gegel, J.C. Malas and S.M. Doraivelu, 1982, "Computer Aided Process Modeling of Hot Forging and Extrusion of Aluminum Alloys", Annals of CIRP, Vol. 31 No. 1, pp. 131-136.   DOI   ScienceOn
8 K.F. Celik and N.R. Chitkara, 2000, "Application of an upper bound method to off centric extrusion of square sections, analysis and experiments", Int. J. Mech. Sci., Vol, 42, pp. 321-345.   DOI   ScienceOn
9 D.Y. Yang and C.H. Lee, 1978, "Analysis of Three-Dimensional Extrusion of Section through Curved Dies by Conformal Transformation", Int. J. Mech. Sci, Vol. 20, pp. 541-552.   DOI   ScienceOn
10 D.Y. Yang, C.H. Han and M.U. Kim, 1986, "A generalized method for analysis of three-dimensional extrusion of arbitrarily shaped sections", Int. J. Mech. Sci., Vol. 28, pp. 517-534.   DOI   ScienceOn
11 M. Kiuchi, 1984, "Overall Analysis of Non-Axisymmetric Extrusion and Drawing", Proc. of 12th NAMRC, pp. 111-119.
12 J.S. Gunasekera and S. Hoshino, 1980, "Analysis of Extrusion of Non-Circular Sections through Shaped Dies", Annals of CIRP, Vol. 29, pp. 141-145.   DOI   ScienceOn