Temperature Analysis When Using Ethylene-Glycol-Based Tio2 as a New Coolant for Milling

Abstract

This paper presents the effects of various milling conditions on the tool wear and workpiece temperature when using ethylene-glycol-based TiO 2 nanofluid as the coolant for stainless steel AISI 304. A TiN coated carbide insert is used as the milling tool. A thermocouple was embedded into the workpiece to record the workpiece temperature during the end-milling process. It can be clearly seen that the temperature keeps on increasing after each experimental pass for three sets of experiments. The experiment conducted using the ethylene-glycol-based TiO 2 nanocoolant exhibits a much lower workpiece temperature compared to the experiment conducted using a normal commercial coolant. Milling with the ethylene-glycol-based TiO 2 nanocoolant reduced the wear on the edge of the insert compared to the normal commercial coolant. In conclusion, end-milling stainless steel AISI 304 using a TiN coated carbide insert and an ethylene-glycol-based TiO 2 nanocoolant exhibits superior results with regard to workpiece temperature and tool wear. The temperature was reduced by 30 percent when using the nanofluid

Thermal conductivity and viscosity of deionised water and ethylene glycol-based nanofluids

“…For example, CNTs have high aspect ratio, ultralight weight, high mechanical strength, high electrical conductivity, high thermal conductivity and high surface area as compared to other types of metallic or oxide nanoparticles [12][13][14]. Literature on thermal conductivity has highlighted that the addition of nanoparticles, such as Al2Cu and Ag2Al, at concentrations of 0.2 vol% to 1.5 vol% to ethylene glycol and deionised water has resulted in an enhancement of about 50% to 150% higher than that of standard base fluid, whereas enhancement of 12.7% at 1.0 vol% of CNT was reported for ethylene glycol-based nanofluids [2,9,[15][16][17][18]. Studies conducted by researchers have found that the inclusion of a surfactant in nanofluids influences effective thermal conductivity, where enhancement was about 22.2% at 0.5 wt% of CNT and 0.01 wt% of PVP [19].…”

A comprehensive review on heat transfer characteristics of TiO2 nanofluids

“…This leaded to a closer temperature control in an aromatic aldehyde's selective reduction and simultaneously the temperature of reaction varied rapidly. Yogeswaran et al [66] used EG-based TiO 2 nanofluids as coolant to cool the milling process, the results indicated that when using TiO 2 nanofluid, the wear temperature was reduced by 30%, and the tool wear from milling was much less and the tool life was increased.…”

Investigation on the use of cutting temperature and tool wear in the turning of mild steel bars

“…There is no doubt that the cutting efficiency gets improved if the cutting temperature is maintained at low levels. The effect of the cutting temperature is detrimental to the life of the tool and the workpiece surface quality.Literature contains a lot of reports on experimental studies that are based on experiments that have utilised various techniques meant for determining the cutting temperature and its distributions along the cutting edge of the tool [7][8][9][10][11][12][13]. Such studies have been successful in accurately predicting the cutting temperature, thanks to the new improvements and developments in instrumentation and data acquisition techniques.…”