Chatter suppression is essential for achieving high precision and surface quality in machining processes. In this paper, a control strategy is presented for chatter suppression in cutting process in the presence of tool wear and parameter uncertainties. A single-degree-of-freedom model of a turning process in the orthogonal cutting configuration is used to set up the nonlinear delay differentia...

We study the combined effect of different noise sources on systems with delay. In a model for machine tool vibrations, specifically regenerative chatter, variation of material parameters or external (additive) noise can amplify vibrations via coherence resonance while random variation of delay can suppress these vibrations. A key feature is the interplay of the noise with several different inhe...

Regenerative chatter is a serious problem in machining. It an unstable relative vibration between the workpiece and cutting tool that adversely affects virtually all chip formation processes. This paper addresses regenerative grinding, which one of most widely used abrasive processes today. As result significant wear surface regeneration (which prerequisite for chatter) can occur not only on bu...

Tool wear is one of the most important considerations in machining operations, as it affects surface quality and integrity, productivity, and cost. The most commonly used model for tool life analysis is the one proposed by F. W. Taylor about a century ago. Although the extended form of this equation includes the effects of important cutting conditions on tool wear, tool life studies are mostly ...