CHATTER DETECTION BASED ON A CONTACT SENSOR IN MILLING OPERATIONS

Chatter vibrations during machining operations are large-amplitude self-excited vibrations, which result in the loss of physical contact between workpiece and tool. This paper presents an electric sensor, is used to detect cutting noncutting periods operation. The spectrum signal sensor free from environmental noise can be select chatter frequencies as boundary stability approached. detection automatic with use analog phototransistor that helps time-periodic sectioning measured signals. presented approach makes possible before harmful arise.