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High rotation speed friction stir welding for 2014 aluminum alloy thin sheets

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dc.contributor.authorChen, S.
dc.contributor.authorZhou, Y.
dc.contributor.authorXue, J.
dc.contributor.authorNi, R.
dc.contributor.authorGuo, Y.
dc.contributor.authorDong, J.
dc.date.issued2017
dc.description.abstractIn this study, 2014 aluminum alloy sheets with 1 mm thickness are welded successfully by friction stir welding (FSW) robot under the condition of high rotation speed. When the high rotation speed of 10,000-16,500 rpm is applied, the lower axial pressure (less than 200 N) is obtained, which reduces stiffness requirements for equipment. Welding deformation is inevitable because high rotation speed can easily result in rapid heating rate and uneven heat input. The welding distortion caused by two cooling methods is measured, respectively, by laser range finder. The experimental results show that the welding distortion is smaller under the condition of water cooling. When the rotation speed is up to 15,000 rpm and welding speed 50-170 mm/min, the whole welding process is controllable. Under the higher rotation speed condition, the welding defects disappear gradually and more stable mechanical properties can be obtained up to 75% of base metal (ω = 16,000 rpm, ν = 110 mm/min). The results of different welding parameters demonstrate that the high rotation speed can increase material mixing and reduce the axial force (z force), and it can benefit lightweight sheet welding by using FSW robot.
dc.identifier.citationJournal of Materials Engineering and Performance, 2017; 26(3):1337-1345
dc.identifier.doi10.1007/s11665-017-2524-y
dc.identifier.issn1059-9495
dc.identifier.issn1544-1024
dc.identifier.urihttps://hdl.handle.net/11541.2/124775
dc.language.isoen
dc.publisherSpringer New York
dc.relation.fundingQing Lan Project
dc.relation.fundingNational Natural Science Foundation of China 51675248
dc.relation.fundingNational Natural Science Foundation of China 51375218
dc.relation.fundingNational Natural Science Foundation of China 51405206
dc.relation.fundingJiangsu Higher Education Institutions of China, Natural Science Fund 15KJB460009
dc.rightsCopyright 2017 ASM International
dc.source.urihttps://doi.org/10.1007/s11665-017-2524-y
dc.subjectaluminum alloy
dc.subjectfriction stir welding
dc.subjecthigh rotation speed
dc.subjectmechanical behavior
dc.subjectthin sheet
dc.titleHigh rotation speed friction stir welding for 2014 aluminum alloy thin sheets
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9916113211101831

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