Joint strength optimization and morphological analysis for friction stir spot welding of the dissimilar thermoplastics ABS and PC

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dc.contributor.authorUlker, Aydin
dc.contributor.authorAyaz, Asil
dc.date.accessioned2021-05-03T20:36:57Z
dc.date.available2021-05-03T20:36:57Z
dc.date.issued2020
dc.departmentEge Üniversitesien_US
dc.description.abstractThe present study aims to investigate the feasibility of friction stir spot welding two dissimilar polymers, acrylonitrile butadiene styrene and polycarbonate. Welding parameters are effective on lap joint shear load. This study also investigated the influences of welding parameters such as rotational speed, plunge depth, and dwell time on the joint morphology and mechanical characterization. in addition, a common problem in friction stir spot welding is the forming of characteristic keyholes in the joint,s a problem that has an important effect on mechanical test results. For this reason, a polycarbonate filler sheet was used to improve the lap joint shear load by reducing the size of the keyhole in this study. The quality of the welded specimens was examined after lap joint shear tests. Experiments were carried out according to Taguchi L-9 orthogonal array using a randomized approach for arranging optimum welding parameters. Signal-to-noise ratio and the analysis of variance were used to determine the influences of each process parameter on the lap joint shear load. Results indicated that the friction stir spot welding of acry-lonitrile butadiene styrene with polycarbonate is feasible and welding parameters significantly affected joint quality. From the experiments, a 57 % improvement was achieved in the lap joint shear load from the initial welding parameters to the optimal welding parameters. Furthermore, weld morphology was investigated by morphological analysis and visual comparisons. Finally, the failure modes of the fractured samples were observed and classified for highest, moderate, and lowest lap joint shear loads.en_US
dc.description.sponsorshipDepartment of Mechanical Engineering of Izmir Katip Celebi University; Department of Polymer Technology of Ege University, Izmir, Turkeyen_US
dc.description.sponsorshipThe authors are deeply grateful for the technological and informational support of the Department of Mechanical Engineering of Izmir Katip Celebi University and Department of Polymer Technology of Ege University, Izmir, Turkey.en_US
dc.identifier.doi10.3139/120.111593
dc.identifier.endpage1117en_US
dc.identifier.issn0025-5300
dc.identifier.issn0025-5300en_US
dc.identifier.issue11en_US
dc.identifier.startpage1109en_US
dc.identifier.urihttps://doi.org/10.3139/120.111593
dc.identifier.urihttps://hdl.handle.net/11454/70289
dc.identifier.volume62en_US
dc.identifier.wosWOS:000588332000006en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherCarl Hanser Verlagen_US
dc.relation.ispartofMaterials Testingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFriction stir spot weldingen_US
dc.subjectpolycarbonateen_US
dc.subjectanylonitrile butadiene styreneen_US
dc.subjectdissimilar thermoplastics weldingen_US
dc.subjectTaguchi experimental designen_US
dc.titleJoint strength optimization and morphological analysis for friction stir spot welding of the dissimilar thermoplastics ABS and PCen_US
dc.typeArticleen_US

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