A Review on Ultrasonic Welding of Glass Fibre Reinforced Plastic
Keywords:Ultrasonic welding, GFRP, composite, process parameter, strength.
The “composite material” is composed of a discrete reinforcement & distributed in a continuous phase
of matrix. In Glass Fibre reinforced plastic (GFRP) composite, plastic is used as matrix which form network with
glass fibre. Glass fibre composites are strong and stiff being light in weight increases strength to weight and
stiffness to weight ratios. Plastic composites can joined by mechanical fastening, adhesive bonding and welding.
Mechanical fastening, adhesive bonding combined with pre-treatment and welding , therefore, have been applied
for joining. Ultrasonic welding has received significant attention during past few years due to their suitable
applications in comparison to conventional fusion welding techniques. Strength of ultrasonically welded GFRP
depends on process parameters like pressure, weld time, thickness ratio, and amplitude. This paper presents an
overview of ultrasonic welding process, joining of GFRP, and process parameters