International Journal of Advancements in Mechanical and Aeronautical Engineering
Author(s) : PRASAD D UNDE, RAVINDRA GHODKE
The 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 the material. The various process parameters like jet pressure, standoff distance and the feed rate were considered to study the effect on delamination of the material and the kerf width of the cut. It is found that the delamination of the material cannot be eliminated but it reduces in AWJM. It is observed that delamination is more on top side as compare to bottom side. The jet pressure, standoff distance and feed rate plays important role in deciding the delamination of the material.