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dc.contributor.authorUkar, Eneko
dc.contributor.authorArrizubieta, Jon Iñaki
dc.contributor.authorFerros, Mercedes
dc.contributor.authorAndres, Maite
dc.contributor.authorLiebana, Fernando
dc.date.accessioned2020-03-04T14:16:47Z
dc.date.available2020-03-04T14:16:47Z
dc.date.issued2020-01-22
dc.identifier.citationUkar, Eneko, Jon Iñaki Arrizubieta, Mercedes Ferros, Maite Andres, and Fernando Liebana. “Laser Dissimilar Joining of Al7075T6 with Glass-Fiber-Reinforced Polyamide Composite.” Coatings 10, no. 2 (January 22, 2020): 96. doi:10.3390/coatings10020096.en
dc.identifier.issn2079-6412en
dc.identifier.urihttp://hdl.handle.net/11556/892
dc.description.abstractDissimilar joining between metal and composite sheets is usually carried out by mechanical or adhesive joining. Laser dissimilar joining between metal and composite sheets could be an alternative to these methods, as it is a cost-effective and versatile joining technique. Previously, textured metallic and composite parts have been held together and heated with a laser beam while pressure is applied to allow the melted polymer to flow into the cavities of the metal part. The main issue of this process relates to reaching the same joint strength repetitively with appropriate process parameters. In this work, both initial texturing and laser joining parameters are studied for Al 7075-T6 and glass-fiber-reinforced PA6 composite. A groove-based geometry was studied in terms of depth-to-width aspect ratio to find an optimal surface using a nanosecond fiber laser for texturing. Laser joining parameters were also studied with different combinations of surface temperature, heating strategy, pressure, and laser feed rate. The results are relatively good for grooves with aspect ratios from 0.94 to 4.15, with the widths of the grooves being the most critical factor. In terms of joining parameters, surface reference temperature was found to be the most influential parameter. Underheating does not allow correct material flow in textured cavities, while overheating also causes high dispersion in the resulting shear strength. When optimal parameters are applied using correct textures, shear strength values over 26 kN are reached, with a contact area of 35 × 45 mm2.en
dc.description.sponsorshipThis research was funded by the Basque Government grant number KK-2017/00088.en
dc.language.isoengen
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)en
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleLaser Dissimilar Joining of Al7075T6 with Glass-Fiber-Reinforced Polyamide Compositeen
dc.typejournal articleen
dc.identifier.doi10.3390/coatings10020096en
dc.rights.accessRightsopen accessen
dc.subject.keywordsLaser direct joiningen
dc.subject.keywordsLaser structuringen
dc.subject.keywordsMetal polymer jointen
dc.subject.keywordsGroove aspect ratioen
dc.subject.keywordsShear strengthen
dc.issue.number2en
dc.journal.titleCoatingsen
dc.page.initial96en
dc.volume.number10en


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