Modelling Of Cooling Rates By Comparison Of Expe- Rimental Determined And Numerical Simulated Temperature-time-functions At Laser Beam Welding Of Steels
Price
Free (open access)
Transaction
Volume
17
Pages
10
Published
1997
Size
968 kb
Paper DOI
10.2495/SURF970291
Copyright
WIT Press
Author(s)
G. Bruggemann, Th. Benziger, A. Mahrle & J. Schmidt
Abstract
The quality of laser beam welds is strongly influenced by the technological pa- rameters. These parameters have an effect on the temperature field of the melt. Simulations of the temperature distribution accompanied by verifying experi- ments can help to obtain optimal process parameters. 1 Introduction The result of laser beam welding is decisively influenced by the technological parameters. Amongst others the instabilities of the melt pool as well as cooling rates reduce the quality of the weld. This leads to weld defects like cracks and to a deterioration of the mechanical properties especially in the heat-affected zone. For the assessment of the joint depending on the adjustment of the process pa- rameters it is necess
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