Akademik Veri Yönetim Sistemi
Tribology in Industry, cilt.30, sa.1-2, ss.17-22, 2008 (Scopus)
Recent advances in cutting tool materials and PVD surface coatings are making highspeed dry machiningan increasingly viable machining operation in commercial manufacturing sectors. In this investigation, the performance of cathodic arc TiN and TiAlN coatings was assessed on HSS twist drills used to machine 1015 and 2080 workpiece materials under aggressive machining conditions. 17.6-26.4 m/min cutting speeds and 0.10-0.15 mm/rev feed rates were used as cutting parametersand all the experiments conducted under dryconditions. Number of holes drilled by TiN, TiAlNcoated and uncoated tools observed and TiN coating was found to be superiour than the others. The drill wear was observed using scanning electron microscopy (SEM) and also macroscopy, and comparative wear properties were discussed.