The finite-element tool SYSWELD (ESI Group, Paris, France) was adapted to simulate pulsed-laser seam welding. Besides temperature field distribution, one of the possible outputs of the welding simulation is the amount of absorbed power necessary to melt the required material volume including energy losses. Comparing absorbed or melting energy with applied laser energy, welding efficiencies can be calculated. This article presents achieved results of welding efficiency estimation based on the assimilation both experimental and simulation output data of the pulsed Nd:YAG laser bead on plate welding of 0.6-mm-thick AISI 304 stainless steel sheets using different beam powers.
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The authors gratefully acknowledge the financial support provided by The Ministry of Education, Youth and Sports (INGO II Project LG13007) and European Social Fund (ECOP Projects CZ.1.07/2.4.00/17.0014 and CZ.1.07/2.2.00/28.0168).
Manuscript submitted October 14, 2013
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Sebestova, H., Havelkova, M. & Chmelickova, H. Energy Losses Estimation During Pulsed-Laser Seam Welding. Metall Mater Trans B 45, 1116–1121 (2014). https://doi.org/10.1007/s11663-014-0029-8