Experimental Investigation of Chatter Dynamics in Thin-walled Tubular Parts Turning
Communication avec acte
Chatter prediction is nowadays frequently carried out for machining operations involving deformable parts or tools. These analyses are commonly based on the uncoupled elements of the system: frequency response of the deformable parts under non-rotating conditions and cutting law. The present investigation puts forward the dynamics of a thin-walled tubular part during straight axial turning undergoing chatter instability. Studied system’s peculiarities include quasi-static nominal cutting conditions and twin flexural modes featuring strong variation of modal characteristics along the pass. The measurement records, based mainly on fixed-frame non-contact eddy-current displacement probes, are performed during the machining operation. Additional hammer modal analysis tests are also carried out. As can be observed from time and spectral analysis of the records, the system's response features several characteristic phenomena as, for example, twin mode separation. The influence of different factors, such as the additional stiffness due to the tool presence, gyroscopic effects and the fixed sensors measurement on rotating part is investigated.
Showing items related by title, author, creator and subject.
Communication avec acteGERASIMENKO, Artem; GUSKOV, Mikhail; DUCHEMIN, Jérôme; LORONG, Philippe; GOUSKOV, Alexander (ELSEVIER, 2015)Thin tubular parts are often subject to turning process during manufacturing. The increasing compliance of the workpiece, which is associated to tool displacement and to matter removal, can give rise to chatter, leading ...
Analytical modeling of a thin-walled cylindrical workpiece during the turning process. Stability analysis of a cutting process Article dans une revue avec comité de lectureGERASIMENKO, Artem; GUSKOV, Mikhail; GOUSKOV, Alexander; LORONG, Philippe; SHOKHIN, Alexander (Inderscience, 2017)The purpose of this work is to develop a mathematical model of the dynamics of turning a thin-walled cylindrical shell. This model uses a finite number of degrees of freedom and takes into account the variability of dynamic ...
Communication avec acteKONDRATENKO, Kirill; GOUSKOV, Alexander; GUSKOV, Mikhail; LORONG, Philippe; PANOVKO, Grigory (Springer International Publishing Switzerland, 2015)Cutting forces measurement is an important component of the ma- chining processes development and control. The use of conventional direct meas- urement systems is often impossible as they interfere in the process’s dynamics. ...
Article dans une revue avec comité de lectureGOUSKOV, Alexander M.; GUSKOV, Mikhail; LORONG, Philippe; PANOVKO, Grigory (Inderscience, 2017)This paper addresses a modelling approach for cutting tool and workpiece material interaction with ploughing taken into account. In the proposed model the distributed contact on the flank face is replaced by a concentrated ...
Communication sans acteCOFFIGNAL, Gérard; DUCHEMIN, Jérôme; ILLOUL, Lounès; GENGEMBRE, Christophe; GUSKOV, Mikhail; LORONG, Philippe (2013)Présentation concernant la modélisation des phénomènes dynamiques en usinage. Cette modélisation a pour particularité de permettre la prédiction de la géométrie des surfaces usinées (défauts de forme, d'ondulation) que la ...