Investigation on Influence of Cutting Forces in Performance Evaluation of Machining of Al/SiC composite (LM-13) using Cryogenic Liquid Nitrogen as a Coolant

Abstract

This paper reports influence of cutting forces using cryogenic Liquefied Nitrogen (LN2) lubricant in machining of (LM-13)Aluminium metal matrix composite compare to conventional coolant. The Silicon Carbide is used as reinforcement material in Aluminium Silicon alloy (LM-13). The various machining parameters such as machining force, radial force, feed force, and surface roughness were analysed under conventional and cryogenic nitrogen cooling environments. The experimental results under liquid nitrogen coolant and conventional coolant conditions were taken for evaluation. The results showed that cutting forces and surface roughness values of machined workpiece reduced considerably on applying of cryogenic LN2 coolant compared to conventional machined environments.

Key words: Al/SiC, LN2 cooling, Cutting forces, Surface finish