Paper Details

In this research work, hard turning of AISI 52100 (chrome steel) having hardness of 57 HRC is consideredfor analysis of machined surface roughness and tool flank wear using CBN cutting tool insert. This chrome steel bearshaving high hardness, wear resistance, surface finishing and dimensional precision; it is widely used to manufacturemechanical components, notably in balls and roller bearing. The temperature developed during machining is critical foranalysis since it effects wear of the cutting tool and increases the surface roughness of the machined surface. Theinterface temperature, surface roughness, flank wear and chip morphology generated during machining will depend onthe machining parameters chosen for this material. Experiments are designed based on Taguchi's Design of Experiment,for three input parameters each has three levels based on an L9 Orthogonal array. The output responses are analyzedbased on Signal-to-Noise ratio and statistical tool like ANOVA and regression. The effect of interface temperature andchip morphology on surface roughness and flank wear is analyzed and the optimum cutting conditions are evaluated forminimizing surface roughness of work piece and tool flank wear to a considerable amount. The experimental resultsindicated that rise in interface temperature increases the surface roughness and tool flank wear. At optimum conditionsurface roughness value decreases when shape of chip changes from continuous to discontinues type. Results also showswhen flank wear increases, shape of chip changes from continuous spring saw tooth wavy type to continuous spring oneside flat one side saw tooth type chip.

Kadam N Prajapati, Vallabh D Patel, “Experimental analysis and effect of interface temperature and chip morphology on surface roughness & flank wear in hard turning of AISI 52100”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 3, pp. 397-405, March 2015.