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Investigation on laser welding of Ti-6Al-4V plates in corner joint

TitleInvestigation on laser welding of Ti-6Al-4V plates in corner joint
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2016
AuthorsCaiazzo, F., Alfieri V., Astarita A., Squillace A., and Barbieri Giuseppe
JournalAdvances in Mechanical Engineering
Volume9
ISSN16878132
Abstract

The article deals with laser beam welding of Ti-6Al-4V plates for aerospace applications. A number of trials are conducted to weld 3-mm-thick plates in corner joint configuration; a specific device for clamping and shielding to prevent oxidation is used. Autogenous welding is investigated, the joint being accessed from the outside, as a butt-welded corner joint. Referring to international standards, the results are first discussed in terms of geometry of the welding bead in the cross-section since titanium alloys are reported to be notch sensitive. Moreover, microstructure and microhardness are investigated. An optimum processing condition is suggested in order to perform laser beam welding with minimal undercut and porosity. © The Author(s) 2017.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85013653868&doi=10.1177%2f1687814016685546&partnerID=40&md5=beda2ed165593ef6ad3de2399fcb533a
DOI10.1177/1687814016685546
Citation KeyCaiazzo2016