Investigation of resistance spot welds between DP450 steel and aluminum alloys


AKINAY Y. , HAYAT F.

MATERIALS TESTING, cilt.58, ss.408-412, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 58 Konu: 5
  • Basım Tarihi: 2016
  • Doi Numarası: 10.3139/120.110873
  • Dergi Adı: MATERIALS TESTING
  • Sayfa Sayıları: ss.408-412

Özet

In this study, the resistance spot weldability of DP450 steel and aluminum alloys (AA1050, AA6061 and AA7075) was investigated and the interfacial characteristics of fracture zones was examined via microanalysis, scanning electron microscopy and energy dispersive spectroscopy (EDX). In addition, tensile shear load tests and hardness tests were performed to determine the mechanical properties and fracture behavior of welded joints. These results suggest that the tensile shear strength of the DP450/AA1050 and DP450/AA7075 joints was not affected by the reaction layer formed at the welding interface. This indicates that the spot weldability of DP450/AA6061 is better than DP450/AA1050 and DP450/AA7075 Al alloys.