COMPUTER-AIDED DESIGN FOR CYLINDRICAL DIES.

被引：0

作者：

Tongxi, Yu ^{[1
]}

Liangchi, Zhang ^{[1
]}

Ren, Wang ^{[1
]}

机构：

[1] Peking Univ, China, Peking Univ, China

来源：

Jixie goneheng Xuebao | 1988年 / 24卷 / 01期

关键词：

ALUMINUM AND ALLOYS - Forming - MATHEMATICAL TECHNIQUES - Algorithms - PLATES - Manufacture - PRESSES - STRESSES;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A proposition of computer-aided design for cylindrical dies to press metal plates is suggested. A thorough discussion on the implementation of this idea is made. A series of new algorithms is adopted. (1) The Lagrange interpolation to treat the true stress-strain relationship of arbitrarily given materials; (2) the piecewise curve fit by spline to obtain curvature function; (3) the least square collocation-Powell method to solve the nonlinear differential equations. Thus, the final shape of a die can be easily obtained by the application of the present method, as long as the geometry of a workpiece is specified. As an example, a U-shaped die to press 2024-T 4 aluminum plates is then designed by this approach. Results with very good accuracy are obtained. The idea can be used on more complicated problems.

引用

页码：1 / 7

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