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International Journal of Automotive Technology > Volume 7(7); 2006 > Article
International Journal of Automotive Technology 2006;7(7): 853-858.
Smoothing Method of Auto-Body Part Contour for the Die-Face Design System Based on the CAE Platform
K. J. GONG1, W. GUO2, P. HU2
1Jilin University/Tsinghua University
2Jilin University
ABSTRACT
The method of die-face design based on the CAE platform for automobile panels can fast modify the die addendum. In contrast with the process of the die-face design based on the CAD platform, there are some special steps for the die-face design based on the CAE platform. The most obvious difference is that the auto-body part contour needs smoothing earlier than the design of addendum surfaces does. It is helpful to improve the design quality of addendum surface. In spite of extensive researches on the smoothing technique, there is still dearth of the published solutions about smoothing the part contour with additional surface. This paper attempts to analyze the difficulties and provides practical solutions. Main results include the algorithm to calculate the segments needing to be smoothed on boundary, the strategy to create the smoothing curve and the procedure of surface generation. The relevant function modules for parametric design are developed. A few examples and suggestions for future work conclude the paper.
Key Words: Die-face design, Surface extension, Die addendum, Automobile panel
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