Determination of tool wear with vibration measurements in the drilling process of glassfiber-reinforced composite material (EPGC 201)

It's very important that detection of tool wear at the right time in order to increase manufacturing quality and efficiency. This work aims to determination of tool wear with vibration measurements of glassfiber-reinforced composite material in drilling process. In this research drill tool flank wear has been considered as tool wear. Experimental setup established with the equipment of 1180 tool included angle, Ø10 HSS (High Speed Steel) and drilling process operated at 950 rev/min and 0.1 mm/rev feed rate without any cooling liquid. Glassfiber-reinforced composite material (EPGC 201) is prepared as Ø100 cm circular workpiece and cutting process operated in circular orbit. Accelometers placed vertical to the cutting axis and vibration measurements performed perpendicular because vibrations that vertical to the cutting axis are more powerful on flank wear. Mean value of each vibration signal that come from accelometer are collected and compared in time domain and frequency domain. Finally amount of tool wear and vibration signals are compared. After the experimental tests and comparing the datas, results showed that amplitude of vibration signals have been increased as long as tool wear increases.