Abstract: “he fiber-reinforced composite materials supersede the metals in innumerable domestic and commercial applications like automotive and aerospace industries because of its advantages like high strength to weight ratio, better mechanical properties, durability, impact resistance and most important the corrosion resistance properties. But the machining of these heterogeneous type of materials is serious apprehensions because most of the FRP manufacturers do not provide standard procedure to machine these type of materials. Delamination is considered the major defect in machining of the FRP materials. Glass fibre-reinforced polymer (GFRP) composite materials are one of the important materials and are economic alternative to engineering and other FRP materials. In this study the abrasive waterjet machining of GFRP material is studied. The abrasive waterjet machining (AWJM) is one of the advance machining process of material removal in which high velocity abrasive particles are used to remove”

Keywords: abrasive waterjet machining, delamination, kerf taper.