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The influence of joint gap on the strength of hybrid Nd:yttrium-aluminum-garnet laser-metal inert gas welds
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0002-3569-6795
2006 (English)In: Journal of laser applications, ISSN 1042-346X, E-ISSN 1938-1387, Vol. 18, no 3, p. 181-184Article in journal (Refereed) Published
Abstract [en]

This article presents the results of an experimental and theoretical analysis of the effect of joint gap on the strength of hybrid laser-metal inert gas welds. The welds were of the partial penetration butt type with various joint gaps but identical weld penetration. Impact testing established that a zero gap gave a weak weld because the weld geometry contained the equivalent of a sharp crack where the unwelded parts met each other. A small gap between the workpieces improved the weld impact strength as the sharp crack effect became dissipated. Further increases in gap width resulted in a weakening of the joint and this is the subject of a discussion on joint gap optimization

Place, publisher, year, edition, pages
2006. Vol. 18, no 3, p. 181-184
National Category
Manufacturing, Surface and Joining Technology
Research subject
Manufacturing Systems Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-10080DOI: 10.2351/1.2227009ISI: 000240254700003Scopus ID: 2-s2.0-33845672300Local ID: 8d4b3b60-c27d-11db-9ea3-000ea68e967bOAI: oai:DiVA.org:ltu-10080DiVA, id: diva2:983020
Note
Validerad; 2006; 20070222 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Wouters, MarcPowell, JohnKaplan, Alexander

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