Glass Fiber Reinforced Polymer (GFRP) composites are being used to replace metallic materials in a wide range of industries. In the drilling of GFRP, the quality of hole is strongly dependent on process parameters. The aim of this work is to investigate the effect of cutting speed and drill material on thrust force and torque in drilling of GFRP. Drilling tests were carried out using HSS and tipped carbide twist drills and damage development during drilling was studied. The critical thrust for Iso-phthalic glass composite was found to be 60 N.

Sivarajan S

School of Mechanical Engineering

Vellore Campus

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Applied Mechanics and Materials

Composite Structures

Recent advances in drilling hybrid FRP/Ti composite: A state-of-the-art review

Glass laminate aluminium reinforced epoxy (GLARE) is an advanced aircraft material because of its excellent fatigue crack resistance, high impact strength, high strength-to-weight ratio and high stiffness-to-weight ratio. While drilling on composite/metal stacks has been investigated, the drilling of GLARE, which consists of several alternate thin layers of aluminium and composites, has not been addressed separately in the open literature. The focus of present experimental work is to understand the cutting mechanism and relative effect of cutting parameters and tool geometry on the delamination and burr formation during drilling of GLARE. Thrust force, torque and acoustic emission (AE) signals were acquired for analyzing the cutting mechanism, burr and delamination formation. Also, several measurements of burrs, delamination and hole size were taken in order to understand the hole quality. It has been observed that, 2-fluted drill is the best out of four different geometries used, giving zero delamination and acceptable burr formation followed by the 4-faceted drills. The conventional 3-fluted and 8-faceted drills that are otherwise superior for drilling of fiber reinforced plastics (FRP) composites, performed poorly in drilling of the GLARE laminates. Analyzing the processing parameters, feed again has a dominant role in controlling delamination and burr formation than speed. © 2015 Elsevier Ltd.

Analysis of hole quality in drilling GLARE fiber metal laminates

The International Journal of Advanced Manufacturing Technology

Optimization of thrust, torque, entry, and exist delamination factor during drilling of CFRP composites

Procedia Technology

A Review Paper on Effects of Drilling on Glass Fiber Reinforced Plastic

Procedia Materials Science

Experimental Studies on Effect of Process Parameters on Delamination in Drilling GFRP Composites Using Taguchi Method

Effect of Cutting Speed on Thrust Force and Torque in Drilling of Glass Fiber Reinforced Polymer Based on Defects Tolerance

Journal	Applied Mechanics and Materials
Publisher	Trans Tech Publications, Ltd.
Open Access	0