Akademik Veri Yönetim Sistemi
BALKAN 13th INTERNATIONAL CONFERENCE ON APPLIED SCIENECES, Skopje, Makedonya, 25 - 27 Nisan 2025, cilt.1, ss.76, (Özet Bildiri)
In this study, an experimental work was carried out on an universal lathe. DIN GGG-40 ductile iron was drilled by TiAlN coated carbide twist drills. The drills manufactured with coolant holes and Ø14 mm diameter. In the tests, different cutting parameters, such as 3 spindle speed (1000, 1400, 2000 rev/min), 3 feedrate (0.18, 0.24, 0.32 mm/rev) were applied. The test parts were prepared by turning processing method for Ø25 mm as diameter and 50 mm as length. Then, all specimens were grinded with the same setting machine parameters. A Taguchi model, L9, was used to organize the experiments. In the tests, cutting forces and temperature were measured. The cutting forces including torques (Mz) and feed forces (Fz) were gotten by using a dynamometer, called Kistler 9272. An apparatus were designed and manufactured to mount the dynamometer on the universal lathe. The temperatures, during the drilling process, were investigated by using two thermocouples that passed through the drill’s coolant holes. Taguchi and ANAVO analysis were done to evaluate the results of the tests. Main effects factors, such as spindle speed and federate, were determined for drilling DIN GGG-40 material. The experimental results showed that torques and feed forces increased with increasing federate. In addition, the temperature is gone down due to increasing the spindle speed. But, it has been revealed that temperature has a positive effect on reducing feed force and torque.