Machining and Machinability of Fiber Reinforced Polymer Composites (original) (raw)

Drilling is an extensively used manufacturing process for boring different and widely used fiber-reinforced polymeric (FRP) composite materials, among various machining operations. This process is inevitable for assembling/coupling of parts of systems. Despite of good inherent properties of the FRP compositematerials, they are not easy to drill, due to the dissimilar properties of their constituents (mainly fiber/reinforcement and matrix). More than a few drilling-induced damage (DID) on FRP composites include delamination, surface roughness, fiber-pull out/uncut, among others. They severely affect the quality, structural integrity and applications of the drilled composite components. The most rampant among these damage is delamination; either peel-up or push-out type. Importantly, these damage are frequent and attributed mainly to the geometry design of the drill bits used. It is highly germane to consider and further study the influence of the drill geometry design (DGD) on reduct...