Analysis of tool wear and chip morphology under different machining environments in turning operation

Abstract

A large supply of coolant can raise machining costs and be potentially harmful to the environment. Therefore, other techniques are needed to solve the issues that arise while using coolant. In this study, the effects of cutting speed, feed, depth of cut, and lubrication conditions (dry: no lubrication, cotton seed oil-based nano fluid: alumna is used during machining). The surface roughness and cutting force were investigated during the turning of 304 stainless steels with minimum quantity lubrication (MQL). L9 orthogonal array was used for the experiments. The findings show that dry may be replaced by alumina nanofluids with MQL. In order to assess the machinability of hardened AISI 304 steel, cutting force and surface roughness are taken into account as technological performance criteria. Al2O3 is combined with cotton seed oil for creating nanofluid sample.