Three-dimensional Weld Pool Simulation In Laser Beam Welding
Price
Free (open access)
Transaction
Volume
29
Pages
12
Published
2000
Size
1,156 kb
Paper DOI
10.2495/AFM000281
Copyright
WIT Press
Author(s)
A. Mahrle & J. Schmidt
Abstract
A three-dimensional model for the simulation of the temperature distribution during deep penetration laser beam welding of thin sheets is presented. The convective heat transfer in the molten zone is taken into account based on a numerical solution of the conservation equations of momentum, mass and energy. For the steady state, the computation is carried out using a finite difference scheme on staggered grids. 1 Introduction The temperature distribution during welding is important since it accounts for the evaluation of the microstructure, residual stresses and distortion. The measurement of the thermal cycle is difficult because of the high tem- perature range and the existence of a multi- phase system. A remedy is the use of mathematical models. If success in simulation of the temperature has been achieved, essential advantages can be taken of it for further process development and quality a
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