摘要
建立了板材激光加热弯曲成型的温度场模型,利用有限元分析软件Ansys编制了分析激光沿直线扫描板材的仿真软件,并进行了实验研究。研究结果表明,当其它参数不变的情况下,弯曲角度随着板厚的增加逐渐减少;随着板宽增加而增加;随着激光功率增加先增加后减少;随着光斑直径增大而减小;随着扫描速度的增加先增大后减小;板厚或激光扫描速度较大时,板材将发生背向激光束方向的弯曲。最后对板材的激光加热弯曲变形规律从理论上作了进一步的分析。
An analytical model to describe the temperature field was established for laser bending of sheet metal.In order to analyze the forming rule of the change to different parameters,a simulatiion software was programmed by the finite element analysis software Ansys,and the experiments were done.The results show that the bending angles change with the thickness of sheet metal,the width of sheet metal,the laser power and the focus diameter or scanning speed if others factors remain unchanged.In addition sheet metal will bend deviating from the laser beam if there is a big thickness or a high scanning speed.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2003年第4期415-418,共4页
Journal of Optoelectronics·Laser
