Deformation behaviors of laser forming of ring sheet metals
Purpose Laser forming is a highly flexible sheet metal forming technique. Laser forming along curved irradiation paths, the heated zone is bigger and the effects of the processing parameters on the deformation are complex.Design/methodology/approach The deformation behaviors of laser forming of ring sheet metals have been investigated from the thermal-mechanics analysis by the FE simulation based on the proposed FEM model. The effects of ring central angle and scanning path on deformation of ring sheet metal were investigated.Findings The results are as follows: (1) in comparison with the laser bending along linear path, the marked third point occurs two peak temperatures during the laser forming process along curved path; (2) the forming process is fluctuating continuously and the sheet edge is warped because the rigid-ends effect due to the restriction of sheet; (3) when the ring central angle increases, the displacement difference of the marked three points decrease and then increase, and the warped curvature of sheet edge decrease; (4) when the laser beam diameter increases, the displacement difference of the marked three points decrease and the warped curvature increases.Originality/value The deformation behaviors of laser forming of ring sheet metals had not been attempted by the FE simulation. The laser curved scanning model and influencing factors are needed to investigate.
Sheet metal Laser forming FEM Simulation
Peng Zhang Jingbo Yu Hongwei Liu Jinping Sun
School of Materials Science and Engineering, Harbin Institute of Technology at Weihai,Weihai 264209, P. R. China
国际会议
北京
英文
362-366
2008-11-06（万方平台首次上网日期，不代表论文的发表时间）