文章基本信息

标题：Investigation on laser welding of Ti-6Al-4V plates in corner joint
本地全文：下载
作者：Fabrizia Caiazzo ; Vittorio Alfieri ; Antonello Astarita 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2017
卷号：9
期号：1
DOI：10.1177/1687814016685546
语种：English
出版社：Sage Publications Ltd.
摘要：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.
关键词：Laser welding; Ti-6al-4V; corner joint; autogenous welding; microstructure