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Simulation of low rigidity part machining applied to thin-walled structures

Arnaud, Lionel and Gonzalo, Oscar and Seguy, Sébastien and Jauregi, Haritz and Peigné, Grégoire Simulation of low rigidity part machining applied to thin-walled structures. (2011) The International Journal of Advanced Manufacturing Technology, vol. 54 (n° 5-8). pp. 479-488. ISSN 0268-3768

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Official URL: http://dx.doi.org/10.1007/s00170-010-2976-9

Abstract

The aim of this study is to evaluate the modelling of machining vibrations of thin-walled aluminium work- pieces at high productivity rate. The use of numerical simulation is generally aimed at giving optimal cutting conditions for the precision and the surface finish needed. The proposed modelling includes all the ingredients needed for real productive machining of thin-walled parts. It has been tested with a specially designed machining test with high cutting engagement and taking into account all the phenomena involved in the dynamics of cutting. The system has been modelled using several simulation techni- ques. On the one hand, the milling process was modelled using a dynamic mechanistic model, with time domain simulation. On the other hand, the dynamic parameters of the system were obtained step by step by finite element analysis; thus the variation due to metal removal and the cutting edge position has been accurately taken into account. The results of the simulations were compared to those of the experiments; the discussion is based on the analysis of the cutting forces, the amplitude and the frequency of the vibrations evaluating the presence of chatter. The specific difficulties to perfect simulation of thin-walled workpiece chatter have been finely analysed.

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://dx.doi.org/10.1007/s00170-010-2976-9
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Ecole Centrale de Nantes (FRANCE)
Université de Toulouse > Ecole des Mines d'Albi-Carmaux - EMAC
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Société MITIS (FRANCE)
Other partners > TEKNIKER (SPAIN)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Laboratory name:
Laboratoire Génie de Production - LGP (Tarbes, France) - Mécanique des Matériaux des Structures et Procédés
Institut Clément Ader - ICA (Toulouse, France) - Modélisation des Systèmes et Microsystèmes Mécaniques - Comportement dynamique des structures
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Deposited By: Lionel Arnaud
Deposited On:29 Nov 2012 13:52

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