Machinability analysis in drilling woven GFR/epoxy composites: Part I – Effect of machining parameters

Experimental analysis of GFRP laminates subjected to compression after drilling

“…The effect of feed rate on delamination is more than that of cutting speed. Unlike them, the works conducted by Khashaba [12,13] show that delamination decreases with cutting speed during drilling of woven-ply GFRP composite laminates; Gaitonde et al [14] also reported that delamination decreases with cutting speed during high speed drilling of thin woven-ply CFRP composite laminates. They also observed that delamination increased by increasing drill point angle of drill bit.…”

Influence of Functionalized Multi-Walled Carbon Nanotubes on the Mechanical Properties and Delamination in Drilling of CFRP Composites

“…Thrust force and delamination factor have a direct relationship, thus drilling-induced delamination can be minimised by reducing the thrust force [15]. Heisel et al [16] found that that the point angle has substantial effect on delamination factor.…”

Evaluation of Thrust force in Drilling Woven roving Glass fibre reinforced Aluminium Sandwich laminates with TiAlN coated drill using Taguchi analysis

“…This variation may lead to defects like delamination. The thrust force produced during drilling is one of main indexes to define machinability of composite laminates due to the fact that it directly affects the quality of drilled holes, especially delamination [15]. There is a critical value for thrust force which is believed to exist below which no delamination occurs [16].…”