An analytical model for the temperature field in the laser forming of sheet metal

被引：77

作者：

Cheng, PJ ^{[1
]}

Lin, SC ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Power Mech Engn, Hsinchu, Taiwan

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2000年 / 101卷 / 1-3期

关键词：

laser forming; Gaussian heat source;

D O I：

10.1016/S0924-0136(99)00411-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Laser forming is a flexible forming process that forms sheet metal by means of stresses induced by external heat instead of by means of external force. In order to identify the relationships between the bending angle and the forming parameters, it is necessary to study first the effects of the forming parameters on the temperature field induced by laser forming. In this paper. an analytical model to describe the three-dimensional temperature field was established for a finite plate with a Gaussian heat source moving at a constant velocity. The analytical model requires less computing time than do the finite element method and the finite difference method. The effects of the laser forming parameters on the temperature distributions are also studied, using the established model. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：260 / 267

页数：8

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