Measuring laser weldability of aluminium alloys using controlled restraint weldability test

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DOIResolve DOI: http://doi.org/10.1179/1362171813Y.0000000137
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TypeArticle
Journal titleScience and Technology of Welding and Joining
ISSN1362-1718
Volume18
Issue7
Pages573580; # of pages: 8
SubjectAl-Mg-Si alloys; Disk laser welding; Full penetration; Laser weldability; Solidification cracking; Solidification cracks; Weldability tests; Welding conditions; Aluminum alloys; Cracks; Laser beam welding; Silicon alloys; Solidification; Weldability; Testing
AbstractAl-Mg-Si alloys are known to be highly susceptible to solidification cracking. Weldability results of laminated AA6061-T6 plates are presented in this paper when welded in full penetration keyhole mode using a 1030 nm, 10 kW Yb:YAG disk laser welding source with different welding conditions. Making use of the controlled restraint weldability (CRW) cracking test, a boundary has been established between crack and no crack conditions for different preloads. The originality of the CRW test is the cross-shaped test coupon that partitions the pre-stress unequally along the welding path. The CRW is proven capable of ranking the solidification cracking behaviour of weld metals deposited under different welding conditions. © 2013 Crown in Right of Canada Published by Maney on behalf of the Institute.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Automotive (AUTO-AUTO)
Peer reviewedYes
NPARC number21269599
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Record identifier95bb5868-dfc2-405e-add2-c37187d8e02e
Record created2013-12-13
Record modified2016-05-09
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