Effect of carbon nanofiber nanofluid on turning of D2 steel

Kamar Din, Tasnim (2016) Effect of carbon nanofiber nanofluid on turning of D2 steel. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This study, investigated the surface roughness of D2 steel and tool wear of cutting tool using carbon nanofiber (CNF) nanofluid. It is also about the comparison between the machining performances using two different coolants which are pure deionized water and CNF nanofluid. In this experimental study, PVD coated carbide TiAlN used as cutting tool and D2 steel used as workpiece. The conventional semi auto lathe used in this experiment was GATE G-410-TCV. The cutting speed (m/min), depth of cut (mm) and feed rate (mm/rev) were the constant variable. While, the varied of volume fraction of CNF was the variable. The measurement of surface roughness and tool wear were measured by using portable surface roughness HT/04/538(3) and microscope Meiji Zoom Stereo Microscope Set respectively. Statistical analysis has been done to identify the relationship between the surface roughness with varied of volume fraction of CNF and the relationship between the tool wear and varied of volume fraction of CNF. The analysis result shown that CNF nanofluid gives better surface roughness and tool wear compared to the pure deionized water. Without CNF in pure deionized water, the surface roughness value is at 2.77 μm, while at the optimum CNF concentration, 0.75% gives the surface roughness reading at 2.37 μm. Similar trends to tool wear value, without CNF concentration the tool wear is at 0.24 mm, while at the optimum CNF concentration, 0.75% the tool wear value decreased until 0.11 mm.

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