Active control of a vibrating beam in milling

The vibrations while Milling often impact the results, sometimes generating very important cost because of the lack of quality for high value parts as well as cutting tool wear due to chatter phenomenon that happens during unstable vibrations. To mitigate this phenomenon, many techniques exist like passive and semi-active methods but the active control in milling, which is not as widespread in turning or boring, remains one of the most promising ways. This article will deal briefly with these techniques before explaining our two system models: cutting process and the vibrating beam, considered as an accurate enough model of a long slender rotary tool, which will be after coupled. Then, we will study the active control of the obtained system following three control strategies: the H_∞ compensator, LQG one and μ synthesis compensator.