Numerical analysis of the influence of cutting speed in machined induced residual stresses in aero-engine alloys

This work is focused on the study of the influence of cutting speed on the induced machining residual stresses of two alloys with widespread use in different components for aero- engines and other industrial applications: austenitic stainless steel (316 L) and titanium alloy (Ti6Al4V). A numerical model based on an Arbitrary Lagrangian Eulerian formulation, validated with experimental results, has been developed. Although the increase of cutting speed raises residual stress, a stabilization of these stresses is observed at high cutting speeds.