Cargando…

Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel

Synergistic effects during hybrid laser-arc welding may cause increased process efficiencies. However, the basic interactions behind these effects are still being discussed, with some contradictory reports. In this study, particular welding parameters of interest were systematically varied to furthe...

Descripción completa

Detalles Bibliográficos
Autores principales: Hipp, Dominik, Mahrle, Achim, Beyer, Eckhard, Jäckel, Sebastian, Hertel, Martin, Füssel, Uwe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6540223/
https://www.ncbi.nlm.nih.gov/pubmed/31064113
http://dx.doi.org/10.3390/ma12091460
_version_ 1783422571411144704
author Hipp, Dominik
Mahrle, Achim
Beyer, Eckhard
Jäckel, Sebastian
Hertel, Martin
Füssel, Uwe
author_facet Hipp, Dominik
Mahrle, Achim
Beyer, Eckhard
Jäckel, Sebastian
Hertel, Martin
Füssel, Uwe
author_sort Hipp, Dominik
collection PubMed
description Synergistic effects during hybrid laser-arc welding may cause increased process efficiencies. However, the basic interactions behind these effects are still being discussed, with some contradictory reports. In this study, particular welding parameters of interest were systematically varied to further the understanding of involved phenomena. The experimental trials are evaluated regarding their synergistic achievements in terms of process efficiency, melting efficiency and energy coupling efficiency using a factorial two-level Design-of-Experiment (DoE) approach. The results show that the growth in process efficiency can be attributed to a dramatic increase in melting efficiency whereas the energy coupling efficiency is only moderately increased. Thus, the synergistic effect is mainly caused by secondary mechanisms that change the energy usage inside the workpiece while direct interactions between the two heat sources can be excluded as a reasonable cause for increased process efficiencies. It is concluded that the different sizes of the heat sources change the heat and mass flow positively and consequently lead to a higher performance level.
format Online
Article
Text
id pubmed-6540223
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-65402232019-06-05 Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel Hipp, Dominik Mahrle, Achim Beyer, Eckhard Jäckel, Sebastian Hertel, Martin Füssel, Uwe Materials (Basel) Article Synergistic effects during hybrid laser-arc welding may cause increased process efficiencies. However, the basic interactions behind these effects are still being discussed, with some contradictory reports. In this study, particular welding parameters of interest were systematically varied to further the understanding of involved phenomena. The experimental trials are evaluated regarding their synergistic achievements in terms of process efficiency, melting efficiency and energy coupling efficiency using a factorial two-level Design-of-Experiment (DoE) approach. The results show that the growth in process efficiency can be attributed to a dramatic increase in melting efficiency whereas the energy coupling efficiency is only moderately increased. Thus, the synergistic effect is mainly caused by secondary mechanisms that change the energy usage inside the workpiece while direct interactions between the two heat sources can be excluded as a reasonable cause for increased process efficiencies. It is concluded that the different sizes of the heat sources change the heat and mass flow positively and consequently lead to a higher performance level. MDPI 2019-05-06 /pmc/articles/PMC6540223/ /pubmed/31064113 http://dx.doi.org/10.3390/ma12091460 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hipp, Dominik
Mahrle, Achim
Beyer, Eckhard
Jäckel, Sebastian
Hertel, Martin
Füssel, Uwe
Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel
title Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel
title_full Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel
title_fullStr Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel
title_full_unstemmed Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel
title_short Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel
title_sort thermal efficiency analysis for laser-assisted plasma arc welding of aisi 304 stainless steel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6540223/
https://www.ncbi.nlm.nih.gov/pubmed/31064113
http://dx.doi.org/10.3390/ma12091460
work_keys_str_mv AT hippdominik thermalefficiencyanalysisforlaserassistedplasmaarcweldingofaisi304stainlesssteel
AT mahrleachim thermalefficiencyanalysisforlaserassistedplasmaarcweldingofaisi304stainlesssteel
AT beyereckhard thermalefficiencyanalysisforlaserassistedplasmaarcweldingofaisi304stainlesssteel
AT jackelsebastian thermalefficiencyanalysisforlaserassistedplasmaarcweldingofaisi304stainlesssteel
AT hertelmartin thermalefficiencyanalysisforlaserassistedplasmaarcweldingofaisi304stainlesssteel
AT fusseluwe thermalefficiencyanalysisforlaserassistedplasmaarcweldingofaisi304stainlesssteel