Characteristic of energy input for laser forming sheet metal  

作　　者：李俐群 陈彦宾 封小松 

机构地区：[1]State Key Laboratory of Advanced Welding Production and Technology, Harbin Institute of Technology, Harbin 150001

出　　处：《Chinese Optics Letters》2003年第10期606-608,共3页中国光学快报（英文版）

摘　　要：Laser forming is a process in which laser-induced thermal deformation is used to form sheet metal without a hard forming tool or external forces. The energy input of laser beam is the key factor for the temperature and stress distribution of sheet metal. The purpose of this work is to investigate the influence of energy input condition on heat input and deformation angle for two-dimension laser forming. Variations in heat input resulting from material deformation was calculated and discussed in this paper at first. Furthermore, in laser forming under the condition of constant laser energy input, the effects of energy input mode on deformation angle and temperature field were investigated.Laser forming is a process in which laser-induced thermal deformation is used to form sheet metal without a hard forming tool or external forces. The energy input of laser beam is the key factor for the temperature and stress distribution of sheet metal. The purpose of this work is to investigate the influence of energy input condition on heat input and deformation angle for two-dimension laser forming. Variations in heat input resulting from material deformation was calculated and discussed in this paper at first. Furthermore, in laser forming under the condition of constant laser energy input, the effects of energy input mode on deformation angle and temperature field were investigated.

关 键 词：Laser beams Metal forming Sheet metal 

分 类 号：O432.12[机械工程—光学工程]