MATEC Web Conf.
Volume 157, 2018Machine Modelling and Simulations 2017 (MMS 2017)
|Number of page(s)||7|
|Section||Modelling and simulation, structural optimization|
|Published online||14 March 2018|
Computer simulations of thermal phenomena in surface heating process using the real distribution of Yb:YAG laser power
Czestochowa University of Technology, Institute of Mechanics and Machine design Foundations, Dabrowskiego 73, 42-200 Czestochowa, Poland
2 University of Zilina, Department of Applied Mechanics, Univerzitna 1, 010 26 Zilina, Slovak rep.
* Corresponding author: firstname.lastname@example.org
This work concerns mathematical and numerical modelling of temperature field during Yb:YAG laser heating of sheets made of S355 steel with the motion of liquid steel in the fusion zone taken into account. Laser power distribution and the caustics are determined on the basis of the geostatistical kriging method. Temperature field and melted material velocity field in the fusion zone are obtained from the numerical solution of continuum mechanics equations using projection method and finite volume method. Numerical algorithms are implemented into computer solver using ObjectPascal programming language. Computer simulations of Yb:YAG laser heating process are performed for different process parameters. Characteristic zones of experimentally obtained cross sections of heated elements are compared to numerically predicted fusion zone and heat affected zone.
Key words: Yb:YAG laser / laser heating / heat affected zone / numerical modelling
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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