Abstract
This paper presents an investigation into the minimum quantity lubrication mode with nano fluid during turning of alloy steel AISI 4340 work piece material with the objective of experimental model in order to predict surface roughness and cutting force and analyze effect of process parameters on machinability. Full factorial design matrix was used for experimental plan. According to design of experiment surface roughness and cutting force were measured. The relationship between the response variables and the process parameters is determined through the response surface methodology, using a quadratic regression model. Results show how much surface roughness is mainly influenced by feed rate and cutting speed. The depth of cut exhibits maximum influence on cutting force components as compared to the feed rate and cutting speed. The values predicted from the model and experimental values are very close to each other.
Highlights
Nowadays machining plays a significant role in the manufacturing industry
It is concluded that estimated equations of surface roughness and cutting force are appropriate for accurate prediction and the proposed model is validated
The following are the conclusions drawn based on the experiment conducted in minimum quantity lubrication (MQL) turning of alloy steel (AISI 4340) with nano fluid: – the mathematical model to predict surface roughness and cutting force is developed in context of input parameters speed, feed, depth of cut and tool nose radius for alloy steel (AISI 4340) material under MQL mode with nano fluid; – Tables 5 and 6 shows prediction error with associated with validation experiments
Summary
Nowadays machining plays a significant role in the manufacturing industry. Manufacturing process in which the desired shape, size and surface finish are achieved through the removal of excess materials in the form of small chips [1]. The relative motion between cutting tool and work piece during machining causes extensive plastic deformation. During such plastic deformation, almost 99% of the energy fed to the machine tool is converted into heat. The use of a blunt tool results in excessive power consumption and poor surface finish [3]. It impairs the surface integrity of the product by inducing tensile residual stresses and surface and subsurface micro cracks in addition to rapid oxidation and corrosion [4].
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