INVESTIGATION OF CUTTING TEMPERATURE IN TURNING CUTTERS WITH DIAMOND-CARBIDE PLATES

Abstract

The influence of the cutting speed on the temperature during the turning of the titanium alloy VT1-0, aluminum alloy AK6 and brass L80 with diamond-carbide plates. The description of the thermocouple calibration is given. It was found that when the titanium alloy VT1-0 was turning with round diamond-carbide plates: with an increase in the cutting speed from 0.4 to 4.2 m/s with a feed of 0.1 mm/rev and 0.05 mm/rev, the cutting temperature nonlinearly increases from 400 to 1200 °C; at a cutting speed of 1.5 m/s, the temperature in the cutting zone exceeds 700° C, which causes the formation of high-strength oxides and titanium nitrides. It has been established that when the aluminum alloy AK6 and brass L80 was turning with round diamond-carbide plates with an increase in the cutting speed from 0.5 to 4.0 m/s with a feed of 0.1 mm/rev, the cutting temperature increases nonlinearly from 110 to 400 °C