Energy Losses Estimation During Pulsed-Laser Seam Welding

• Published in: Metallurgical and materials transactions. B, Process metallurgy and materials processing science Vol. 45; no. 3; pp. 1116 - 1121
• Main Authors: Sebestova, Hana, Havelkova, Martina, Chmelickova, Hana
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-06-2014; Springer; Springer Nature B.V
• Subjects: Applied sciences; Austenitic stainless steels; Characterization and Evaluation of Materials; Chemistry and Materials Science; Computational efficiency; Computing time; Energy management; Exact sciences and technology; Joining, thermal cutting: metallurgical aspects; Laser beam welding; Lasers; Materials Science; Mathematical analysis; Metallic Materials; Metallurgy; Metals. Metallurgy; Nanotechnology; Production of metals; Seam welding; Simulation; Structural Materials; Surfaces and Interfaces; Thin Films; Welding; Seam Welding; Welding; Laser Welding; Full Penetration; Welding Speed; Pulsed laser; Seam welding; Laser welding
• ISSN: 1073-5615; 1543-1916
• DOI: 10.1007/s11663-014-0029-8

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.