Optimization of cutting forces by cryogenic treatment on tungsten carbide inserts during dry turning of the P 20 tool steel

Abstract

The cryogenic treatment is proven to be enhancing the properties of the material. The cryogenic surface treatment not only enhances the mechanical properties but can support the improvement of cutting parameters. The aim of the research conducted is to show the effect of cryogenic treatment on the Tungsten carbide tool insert to optimize the cutting parameters. The cutting force is selected as the parameters to improve as it is one of the key reasons to create stress at the tool-workpiece interface. Hence the comparison of untreated and cryogenically treated inserts was carried out to analyse the effect of surface treatment. Machining at higher speed and depth of cut can generate the higher stress and forces at the interface point. From experiments, it had been observed that the generation of the cutting forces reduces at the same cutting parameter configuration due to cryogenic surface treatment. Different trials were conducted using Taguchi's L27 orthogonal array. The results are also simulated on Matlab surface plot and ANN to study the optimization of parameters for every configuration and its effect.