Design of optimal joining for friction stir spot welding of polypropylene sheets

Abstract

The aim of this paper is to investigate the joint strength of adhesive bonding, friction stir spot welding (FSSW) and hybrid joining as FSSW–adhesive bonding on lap joints of polypropylene plates separately. In addition, the different overlap configurations were studied. The FSSW and weld bonding had higher joint strengths than adhesive bonding, but the FSSW joint was the highest. It reached 93% of the base material strength for the configuration of welded type 2 design.