https://www.db-thueringen.de/receive/dbt_mods_00062591https://www.db-thueringen.de/servlets/MCRFileNodeServlet/dbt_derivate_00064890/2212_8271_111_2022_490-495.pdfhttps://www.db-thueringen.de/rsc/thumbnail/dbt_mods_00062591.png Influence of solidification rate on hot crack behavior in heat conduction laser beam welding of EN AW-6082 Seibold, Marc Marc Seibold aut Author Strelnikov, Dmytro Dmytro Strelnikov aut Author 1235083322 0000-0002-7668-3640 article Schricker, Klaus Klaus Schricker 1987 - aut Author 1176825372 0000-0001-6291-7162 Herzog, Roland Roland Herzog 1974 - aut Author 1032195827 0000-0003-2164-6575 Bergmann, Jean Pierre Jean Pierre Bergmann 1972 - aut Author 137074212 0000-0001-7583-8332 2022-09-06 single unit Elsevier BV 490 495 202200000000000510 111 text 12th CIRP Conference on Photonic Technologies edited by M. Schmidt, F. Vollertsen, B.M. Colosimo Schmidt, M. edt Editor Schmidt M. Vollertsen, Frank edt Editor Vollertsen Frank conference_publication Colosimo, B.M. edt Editor Colosimo B.M. CIRP Conference on Photonic Technologies ; 12 (Fürth) : 2022.09.04-08 CIRP Conference on Photonic Technologies ; 12 (Fürth) : 2022.09.04-08 2022 [Amsterdam u.a.] Elsevier 2024-09-26 en 670 http://uri.gbv.de/document/gvk:ppn:1816974099 111 Procedia CIRP CIRP - The International Academy for Production Engineering CIRP - The International Academy for Production Engineering isb Issuing body 6067627-9 text periodical journal Text Zeitschrift Amsterdam [u.a.] Elsevier 2012 en electronic resource remote Computermedien Online-Ressource 2212-8271 815953105 816298388 rakwb DE-627 120725 20201028T144306 720121132 Converted from MARCXML to MODS version 3.6 using MARC21slim2MODS3-6.xsl (Revision 1.117gbv 2017/02/14) de http://uri.gbv.de/document/gvk:ppn:720121132 continuingjournal 600 670 en Joining of thin aluminum sheets (<1mm) is widely used in the industry for electronic housings or EMC shielding. Aluminum alloys of the 6xxx series are particularly relevant for such applications. However, their use is very challenging in welding processing due to the hot cracking phenomenon. Hot cracks are known to form during the solidification phase and are a major defect regarding mechanical properties and tightness of the weld. For this reason, the formation of hot cracks must be prevented and solidification rate is known to be a key parameter. In this paper, the solidification rate is specifically manipulated by means of pulse shaping. Metallographic analysis and high-speed recordings of welds carried out with different pulse shapes that allowed the determination of a threshold solidification rate to avoid hot cracks. A further pulse shape optimization considered the determined threshold solidification rate and minimized the required pulse energy to realize sound welds. On the one hand, the study proved which simplifications can be assumed for the modeling and optimization of the pulse shapes and that solidification rate can be used as sole parameter to control crack formation of bead on plate welds. On the other hand, the experimental procedure enabled the identification of critical properties of laser beam sources regarding stability, threshold and fast adaptability of beam power. heat conduction welding hot cracks prevention laser beam welding aluminum alloy optimized pulse shape 182082344X 2022-11-07 2024-09-26T10:28:22Z rda Converted from PICA to MODS using Pica2Mods 2.5 in mode 'DEFAULT'. http://uri.gbv.de/document/gvk:ppn:182082344X 10.1016/j.procir.2022.08.076 text 2024-09-26 6 Seiten 670 his Host institution dbt_mods_00062591