High speed cutting (HSC) and high performance machining technology has been applied in steel, aluminum and high-temperature alloys cutting successfully because its particular advantages. Our research focused on the tool friction and tool wear process, the thermal-mechanical coupling in the rake face and flank of cutting tool and tool life prediction model under thermal-mechanical coupling action. The analysis of HSC process of Nickel-based superalloys Inconel 718 provided theoretical foundation and technica...