Drilling of titanium alloy by using hybrid nanofluid in minimum quantity lubricant (MQL)

Hasnol Yusri, Hasriq Ikmal (2022) Drilling of titanium alloy by using hybrid nanofluid in minimum quantity lubricant (MQL). Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Drilling is a machining process that used to make holes on workpiece or product. The process involves in rotary motion of cutting tool that penetrates the workpieces and remove the material. In this study, titanium alloy will be used as a workpiece in three cutting conditions which are dry, base fluid (MQL) and hybrid nanofluid (MQL). Combination of Molybdenum disulphide (MoS2) and Titanium dioxide (TiO2) nanoparticles will be used as hybrid nanofluid lubricant in this experiment. Both MoS2 and TiO2 will be dispersed into deionized water (DI) by using ultrasonic homogenizer. The surfactant that will be used in this mixture is Sodium dodecyl sulphate (SDS) to prevent the mixed solution from agglomeration. During the drilling experiment, 9 experiments will be run with 3 level conditions and 3 parameters by using Taguchi method. The input parameters such as cutting speeds, feed rates, and cutting conditions will be used in achieving the optimal condition for drilling process. Other machining parameters will be kept constant throughout the experiment. For the results and analysis, surface roughness and thrust force will be measured by using surface roughness tester, and dynamometer, respectively. At the end of the study, it is expected that by using hybrid nanofluid as lubricant, the lowest surface roughness and thrust force can be obtained.

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