Vibration damping capability of electrical discharge machined surfaces: Characteristics, mechanism and application

This research explored frictional energy dissipation aspects of electrical discharge machined (EDM) surfaces in the context of passive vibration damping. The effect of discharge current and duration was investigated to characterise the damping capability of these surfaces, and to understand the underlying mechanisms. Topographic analyses indicated the damping ratio to be maximised through an interaction between positive skewness and elevated …