Investigation on Machining Parameters of Titanium Alloy in NMQL Environment

Abstract

Vegetable oil-based nano particle is a realistic alternative lubrication used in standard cutting fluids. In this research, turning operations are done on titanium alloy utilizing cemented carbide inserts with nano minimum quantity lubrication (NMQL). A response surface methodology is employed to optimize the machining variables such as cutting speed, feed, and depth of cut to anticipate the ideal surface roughness, cutting forces, and tool tip temperature. Moreover, an experimental study is conducted to evaluate the performance of NMQL with the different machining factors. According to the findings, NMQL with nano aluminum oxide particles added with coconut oil is an effective lubricant which provides lowering cutting forces, surface roughness, and tool wear. The novelty of work is to analyze the machined surface using atomic force microscopy and tool wear patterns were analyzed by using SEM image. Result was compared with the experimental observations. The most ideal solution for the reduction of surface roughness, cutting force, and tool tip temperature was reached at cutting speed of 60 m/min, a feed rate of 0.04 mm/rev, and a depth of cut of 0.05 mm. The greatest roughness value of 1.62 microns obtained.