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Optimization Strategies for Laser Welding High Alloy Steel Sheets

  • A known phenomenon during laser welding of thin sheets is the deformation caused by thermally induced stresses. This deformation can result in a change of the gap width between the welded parts, which leads to an unstable welding process. Inducing displacements by using a second heat source will compensate for the change in gap width, hence optimizing the welding process. The base material is 1 mmA known phenomenon during laser welding of thin sheets is the deformation caused by thermally induced stresses. This deformation can result in a change of the gap width between the welded parts, which leads to an unstable welding process. Inducing displacements by using a second heat source will compensate for the change in gap width, hence optimizing the welding process. The base material is 1 mm thick austenitic stainless steel 1.4301, which is welded by a CO2 laser. The second heat source is a diode laser. The gap between the welded parts was set between 0.05 mm and 0.1 mm. The influence of the second heat source on the welding process and the welding result is described. The usage of a second heat source allows a higher gap width to be set prior to the welding process. The results of the numerical simulation were found to be corresponding to those of the experiments.show moreshow less

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Metadaten
Document Type:Article
Author: Falk Nagel, Flaviu Simon, Benjamin Kümmel, Jean Pierre Bergmann, Jörg HildebrandGND
DOI (Cite-Link):https://doi.org/10.1016/j.phpro.2014.08.040Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20170425-31554Cite-Link
Parent Title (English):Physics Procedia
Language:English
Date of Publication (online):2017/04/25
Year of first Publication:2014
Release Date:2017/04/25
Publishing Institution:Bauhaus-Universität Weimar
Institutes and partner institutions:Fakultät Bauingenieurwesen / Juniorprofessur Simulation und Experiment
First Page:1242
Last Page:1251
Tag:Laser Welding; CO2; Diode; Distortion; Finite Element Analysis; Thermal Analysis; Mechanical Analysis; Numerical Model
GND Keyword:Edelstahl; Laserschweißen
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften
BKL-Classification:51 Werkstoffkunde / 51.52 Eisenwerkstoffe, Stähle
Licence (German):License Logo Creative Commons 4.0 - Namensnennung-Nicht kommerziell-Keine Bearbeitung (CC BY-NC-ND 4.0)