The simulation of temperature field in the laser forming of steel plates
by Hong Shen, Zhenqiang Yao, Yongjun Shi, Jun Hu
International Journal of Modelling, Identification and Control (IJMIC), Vol. 2, No. 3, 2007

Abstract: Laser forming of metal plates is a flexible forming process that forms sheet by means of thermal stresses induced by external heat source instead of using external forces. The stresses are generated by temperature gradient induced by laser. In this paper, a finite element analysis model including convective and radiation boundary conditions to predict the three-dimensional temperature field is established for a metal plate under the influence of a moving Gaussian heat source. The effects of various laser forming parameters on temperature distributions are investigated using the established model. By using variable scanning velocities a constant temperature gradient in the plate plane is achieved, which can be used to accurately form differently desired shapes of the plate.

Online publication date: Mon, 20-Aug-2007

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