Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
STABILITY ANALYSIS ON TURNING PROCESSES USING A SIMPLIFIED 3-DOF MODEL
Submission Author:
Gabriel de Gois Saretti , SP
Co-Authors:
Gabriel de Gois Saretti, Sidney Bruce Shiki
Presenter: Gabriel de Gois Saretti
doi://10.26678/ABCM.COBEM2019.COB2019-0871
Abstract
Chatter is a self-excited vibration which is an obstacle to machining processes, because its effects leads machining processes to instability, causing poor surface finish and high levels of tool wear. In this way a strategy for chatter prediction was adopted, a 3-DOF considering 3 different lathe components was developed and Nyquist stability criterion was used to generate stability lobes diagrams, to understand the stability behavior of turning process. Through the developed 3DOF model, the influence of some parameters on the process stability were simulated and analyzed. In the conclusion of this paper it is presented the advantages and drawbacks of this type of model in analysis, as well as the exposition of the main results obtained from the analysis performed.
Keywords
Regenerative Chatter, Turning, Vibrations, Stability lobes
