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A comparison of process damping modelling as local flank face interaction and as macroscopic modal feature in a time domain machining simulation

Communication avec acte
Auteur
ccALTSHUL, Grigorii
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccGUSKOV, Mikhail
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccLORONG, Phillippe
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/26513
DOI
10.1016/j.procir.2025.02.111
Date
2025

Résumé

Dissipative components of tool-workpiece interaction are of major importance in cutting-related vibrations. At the macroscopic vibration scale, such dissipation is usually accounted for by additional generalized damping forces in the equation of motion of the system’s elastodynamics. A finer consideration at cutting edge scale would bring up a line-distributed force mostly of ploughing nature. These two scales are usually linked by analytical integration, involving simplifying kinematical assumptions. In the present work a comparative investigation is proposed, for a machining operation, considering both representations in a detailed time domain modeling framework. Tool’s cutting edges are represented in a discretized manner, i.e. split into numerous elementary cutters allowing for detailed tool-workpiece interaction force distribution. The matter removal process is modeled via dexel-based surface discretization coupled with finite element-based modal shapes, enabling a consistent machined surface generation representation. Finally, the equations of motion are formulated for modal degrees of freedom and solved by a time marching algorithm. Based on these analyses, the limitations of resulting process damping force terms representations are considered regarding vibrations and interaction force magnitudes.

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Altshul, G., Guskov, M., & Lorong, ...
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Documents liés

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  • Analysis of Indirect Measurement of Cutting Forces Turning Metal Cylindrical Shells 
    Communication avec acte
    KONDRATENKO, Kirill; GOUSKOV, Alexander; PANOVKO, Grigory; ccLORONG, Philippe; ccGUSKOV, Mikhail (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. ...
  • Prediction of milling-induced vibrations in machining complex parts : numerical and experimental investigation 
    Communication sans acte
    DUCHEMIN, Jérôme; ccLORONG, Philippe; ccGUSKOV, Mikhail (CMVA, 2014)
    Avoiding vibrations during machining is an important issue for industry. When dealing with chatter prediction with a numerical approach, several models are required: dynamical models of the workpiece and tool, cutting ...
  • Simulation of a finishing operation : milling of a turbine blade and influence of damping 
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    COFFIGNAL, Gérard; BALMES, Etienne; TEXIER, Anthony; ccLORONG, Philippe; ccGUSKOV, Mikhail (ASME, 2012)
    Milling is used to create very complex geometries and thin parts, such as turbine blades. Irreversible geometric defects may appear during finishing operations when a high surface quality is expected. Relative vibrations ...
  • Phénomènes dynamiques en usinage : Prédiction de l’état géométrique des surfaces usinées 
    Communication sans acte
    COFFIGNAL, Gérard; DUCHEMIN, Jérôme; ILLOUL, Lounès; GENGEMBRE, Christophe; ccLORONG, Philippe; ccGUSKOV, Mikhail (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 ...
  • Variable compliance-related aspects of chatter in turning thin-walled tubular parts 
    Communication avec acte
    GERASIMENKO, Artem; DUCHEMIN, Jérôme; GOUSKOV, Alexander; ccLORONG, Philippe; ccGUSKOV, Mikhail (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 ...

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