Mechanical properties of Dissimilar AlCu4Mg1 and AlMg3 Plates Joined by Friction Stir Spot Welding

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Bozkurt Y., Pazarlıoğlu S. S., Salman S.

International Symposium on Multidisciplinary Studies, Belgrade, Sırbistan Ve Karadağ, 20 - 23 Ekim 2016, ss.65

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Belgrade
  • Basıldığı Ülke: Sırbistan Ve Karadağ
  • Sayfa Sayıları: ss.65
  • Marmara Üniversitesi Adresli: Evet

Özet

Friction stir spot welding (FSSW) has been proposed as an effective technology to spot weld the so-called “difficult to be welded” metal alloys such as thin sheets aluminum alloys and dissimilar materials. FSSW is derived from friction stir welding technology, its principle benefit being low cost joining, lower welding temperature and shorter welding time than conventional welding methods. In this study, dissimilar AlCu4Mg1 and AlMg3 aluminium alloy sheets were friction stir spot welded by offsetting the high strength sheet to upper side under constant tool rotational speed and different tool plunge depth and dwell times. Mechanical performance has been investigated in terms of microhardness and lap-shear fracture load (LSFL) testing. The maximum LSFL of over 4 kN was obtained in 5 s dwell time.