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Etude de méthodes simplifiées pour la simulation de l'usinage à l'échelle macroscopique

Abstract : This work presents some simplified methods for machining simulation. Two main phenomena are studied, the form error and chatter prediction. For both studies the workpiece and the tool are modelized using a finite element model. The material cutting is modelized using an experimental cutting force law. The resulting cutting force is applied on models as a punctual loading. In order to predict the form error, the relative displacement between the tool and the workpiece is computed for each loading configuration. Then the final form error is built using these results. Regenerative effects are not taken into account. The study of the cutting instability is done appart. Chatter-relative methods are using a frequency domain approach to compute the inconditionnally stable depth of cut. For both aspects, a method based on the static behaviour of the system is presented first. Then, dynamic-based methods are presented. Computed results are confronted to experiments.
Keywords : Machining Fem Vibrations
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https://pastel.archives-ouvertes.fr/pastel-00003289
Contributor : Ecole Arts Et Métiers Paristech <>
Submitted on : Thursday, February 7, 2008 - 8:00:00 AM
Last modification on : Monday, October 19, 2020 - 11:03:46 AM
Long-term archiving on: : Wednesday, September 8, 2010 - 5:46:54 PM

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  • HAL Id : pastel-00003289, version 1

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Jean-Vincent Le Lan. Etude de méthodes simplifiées pour la simulation de l'usinage à l'échelle macroscopique. Sciences de l'ingénieur [physics]. Arts et Métiers ParisTech, 2007. Français. ⟨NNT : 2007ENAM0045⟩. ⟨pastel-00003289⟩

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