Laser joining of fiber reinforced thermoplastic composites and metal

The structure composed with fiber reinforced thermoplastic composites and metal is effective to realize lightweight in the modern equipment manufacturing. Therefore, it is of great academic significance and practical value to achieve high quality, efficient and reliable joining in between. This paper reviews the recent research achievement of laser joining of fiber reinforced thermoplastic composites and metal at home and abroad. The laser joining principle, the bonding mechanism of interface as well as its strengthening methods, and the influence of laser joining parameters on shear strength were introduced in detail. The shear strength has satisfied the requirement of industrial application by using mechanical bonding and chemical bonding strengthening methods as well as avoiding joining defects through controlling the heat input, providing the clamping pressure, and using additional resin. Finally the tendency of development in the near future is predicated.