Sensitivity Analysis of Cryogenic Cooling on Machining of Magnesium Alloy AZ31B-O

Improving the corrosion resistance of magnesium alloys has gained special focus in recent years, and cryogenic machining has been one of the successfully used techniques. The current study presents a sensitivity analysis of cryogenic cooling effects on process mechanics, when cutting AZ31B-O magnesium alloy. Finite element modelling was used to simulateorthogonal cutting of AZ31B-Ounder dry and cryogenic conditions, where different parameters (cutting forces, temperatures, shear angle, chip compression ratio and plastic deformation) were investigated.Also, orthogonal cutting tests were performed on a CNC lathe,under dry and cryogenic conditions,where cryogenic cooling was applied to the clearance sideusing anLN2 jet.