Effect of groove configuration on mechanical properties and fracture behavior of 6061 Al alloy and CFRTP laser joint

Laser surface texturing is generally a promising approach to enhance the adhesion property of metal-thermoplastic hybrid structure, and effect related groove configuration. joining carbon fiber-reinforced thermoplastic (CFRTP) composite 6061 Al alloy under various configurations was carried out, aimed investigate width depth on interfacial morphology, mechanical properties, fracture behavior CFRTP/Al joints. Tensile shear force tested, interface morphology were observed by scanning electron microscopy. Besides, numerical simulation temperature field conducted reveal mechanism. The results indicate that tensile strength joint gradually increases with increase reaches peak value 22.8 MPa when 0.5 mm. As further increased, decreases. Compared width, presents similar variation trend increasing surface. When 0.6 mm, maximum 24.33 MPa. After laser-textured, mode laser features mixed including cohesive an fracture. This study provides deeper understanding configuration structure potentially lays foundation for adjustment suitable toward obtaining desired effect.