Numerical and Experimental Study of Effect of Scan Velocity in Laser Forming by Temperature Gradient Mechanism

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

حسن مسلمی نائینی ¹ , ولی اله پناهی زاده ² , محمد حسین پور گللو ³ , سیامک مزدک ⁴

1 - استاد، دانشگاه تربیت مدرس
2 - دانشجوی دکتری دانشگاه تربیت مدرس
3 - دانشجوی دکتری دانشگاه تربیت مدرس
4 - دانشجوی دکتری دانشگاه تربیت مدرس

Received: 2015-10-03 Accepted : 2015-10-03 Published : 2008-06-21

Keywords: Laser, Sheet metal, TGM, Thermal–mechanical coupling problem,

Abstract :

In this paper the process of laser forming has been investigated using an analytical and an experimental method for three levels scans velocity. A coupled analysis has been performed in ANSYS®. Also in order to prove the predictive methods, experiments on thin sheet metals have been done when a laser of a fair power was used. Before done, experiments were designed with full factorial chosen as the experiment scheme planning. For performing experiments a CO2laser a maximum power of 200 watt is used. A CMM is used to measuring the bending angle of the workspice. Finally, a statistical analysis on the experimental data was performed. The comparison between numerical and experimental results shows the bending angle decreased by increasing the scan velocity also rate of the bending angle decreased by increasing the scan velocity.

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