Comparison of Endmill Tool Coating Performance during Machining of Ti6Al4V Alloy

Abstract

Titanium is a hard-to-machine material. An improvement in tool life via advanced tool coating materials can lead to higher productivity of titanium. In this study, a Grade 5 Ti workpiece was milled using a diamond-like carbon coated (ta-C) cutting tool and its performance compared with the standard TiAlN coated endmill. It was found that a ta-C coated tool experienced higher cutting forces than the TiAlN coated tool; however, it showed slower rate of tool wear indicating better tool life and the possibility of achieving higher metal removal rates. Hence, it was concluded that the ta-C coated cutting tool performed better than the standard TiAlN coated tool.

Energy Consideration in Machining Titanium Alloys with a Low Carbon Manufacturing Requirements: A Critical Review

“…Industrial applications for titanium alloys include aircraft, aero-engines, biomedical devices, and components in chemical processing equipment [32]. It had been established that Alloys of Titanium are widely used in aeronautics that demands a good combination of high strength, good corrosion resistance and low mass, but the mechanical properties associated lead to challenges in machining operations, such as high process temperature as well as rapidly increasing tool wear (Polini and Turchetta, 2014).…”

Investigation of Cutting Temperature during Turning Inconel 718 with (Ti,Al)N PVD Coated Cemented Carbide Tools

“…The heat can decrease the tool life and impair the machined surface quality of a workpiece [ 1 , 2 , 3 , 4 , 5 ]. Coating technology was commonly used to protect the tool substrate, which was an effective way to increase the tool life [ 6 , 7 ]. At present, coated cemented carbide tools account for 80% of total tool production [ 8 ].…”