Finite element method of pulsed laser welding
- Univ. of Wollongong, New South Wales (Australia). Dept. of Materials Engineering
- Commonwealth Scientific and Industrial Research Organisation, Lindfield, New South Wales (Australia). Div. of Manufacturing Technology
A three-dimensional finite element model of the heat flow during pulsed laser beam welding is presented. The heat transfer and parametric design capabilities of the finite element code ANSYS were employed for this purpose. The model calculates transient temperature profiles and the dimensions of fusion and heat-affected zones (HAZ). Temperature-dependent thermophysical properties and experimentally measured beam profiles are incorporated. Model calculations are compared and then calibrated with experimental results of pulsed laser welds. The results suggest that temperature profiles and weld dimensions are strong functions of the absorptivity and energy distribution of the laser beam. For this reason, it is essential to incorporate an accurate description of the heat source.
- OSTI ID:
- 320974
- Journal Information:
- Welding Journal, Journal Name: Welding Journal Journal Issue: 1 Vol. 78; ISSN 0043-2296; ISSN WEJUA3
- Country of Publication:
- United States
- Language:
- English
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