Experimental Study of Cutting Parameter for Drilling on Fabric Carbon/Epoxy Laminates

Abstract

This study is mainly about the drilling of carbon-epoxy laminates. Variation of cutting parameter such as feed rate (50,100 and 150 mm/min) and speed(400,800,1200 rpm) were tested in this study. 6 different laminates orientation (0°/0°/0°/0°, 45°/45°/45°/45°, 0°/45°/0°/45°, 45°/0°/45°/0°, 0°/0°/45°/45° and 45°/45°/0°/0°) were tested in order to see which one is the best. HSS twist drill with 4mm diameter was use in this study. The damage of the composites was seen under digital microscope. The aim of this study is to find the minimum force and the minimum damage mechanism i.e.: entry and exit delamination. The drilling process with different parameter of cutting and the orientation were carried out in order to see the influenced of this parameter to the force and the damage mechanism. The general factorial was used to randomise the number of experiment.

Assessment of Cutting Performance of Cemented Tungsten Carbide Drills in Drilling Multidirectional T700 CFRP Plate

“…On the other hand, few studies have been conducted on the drilling of multidirectional T700 CFRP plate. Shyha et al and Halim et al have demonstrated that the multidirectionality of carbon fibers in CFRP plate definitely influences the drilling performance thereby making its drilling operation more difficult [44,45]. Therefore, there is obvious room for a study related to the drilling of multidirectional T700 CFRP plate.…”