Abstract
As titanium alloys have high strength to weight ratio, corrosion resistance, retention of strength at elevated temperatures, and low thermal conductivity, these characteristics have bad influence on tool wear in cutting of the titanium alloy. The titanium alloy is generally machined in the milling at low cutting speed. The demand of the titanium alloy for industrial products is increasing recently, so the high speed milling of the titanium alloy is desired. In this study, the Ti-6Al-4V alloy was machined at high cutting speed, and the tool wear progress and the cutting mechanics were experimentally investigated in order to clarify the cutting mechanism of the titanium alloy. The results obtained are as follows: The cutting with a ultra-hard alloy tool at the cutting various speeds and various feed rates under cutting method of wet, dry, mist cutting. The wear progress in the dry, mist cutting were slower than that in the wet cutting.
