[en] The paper presents a simulation tool designed to predict form errors of part surfaces obtained by face milling and turning processes. For these operations, the form error is often due to the flexibility of the workpiece and its supports. The finite element method is adopted to model the part geometry and to compute its deformations. Numerous load cases are required to obtain the form error so that classical resolution methods prove to be inefficient (CPU time, memory and disk space). The paper mainly focuses on the special computation scheme adopted in order to improve the resolution of such an atypical problem.
Disciplines :
Mechanical engineering
Author, co-author :
Masset, Luc ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Debongnie, Jean-François ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Méthodes de fabrication
Language :
English
Title :
Machining processes simulation : specific finite element aspects
Publication date :
01 July 2004
Event name :
Second International Conference on Advanced Computational Methods in Engineering
Event organizer :
Université de Liège (M. Hogge, J.P. Ponthot, L. Stainier) et Universiteit Gent (H. De Schepper, R. Van Keer, E. Noldus)
Event place :
Liège, Belgium
Event date :
du 27 mai 2002 au 31 mai 2002
By request :
Yes
Audience :
International
Journal title :
Journal of Computational and Applied Mathematics
ISSN :
0377-0427
eISSN :
1879-1778
Publisher :
Elsevier Science, Amsterdam, Netherlands
Special issue title :
Selected Papers from the 2nd International Conference on Advanced Computational methods in Engineering (ACOMEN2002), Liège University, Belgium, 27-31 may 2002
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Bibliography
J.-F. Debongnie, L. Masset, Controlling form errors from 3D measures, Proceedings of the 1999 ASME Design Engineering Technical Conferences, Las Vegas, NV, 12-15, September 1999.
Gu F. Melkote S.N. Kapoor S.G. DeVor R.E. A Model for the prediction of surface flatness in face milling ASME J. Manuf. Sci. Engg. 119 1997 476-484
Kakade N.N. Chow J.G. Finite elements analysis of engine bore distorsions during boring operation ASME J. Engg. Indust. 115 1993 379-384
Kops L. Gould M. Mizrach M. Improved analysis of the workpiece accuracy in turning, based on the emerging diameter ASME J. Engg. Indust. 115 1993 253-257
G.Y. Liao, Simulation of engine deck face distorsion during fixturing and milling operations, SAE Technical Paper, 2000, 01-1287.
L. Masset, J.-F. Debongnie, S. Foreau, T. Dumont, A model for the prediction of form errors in face milling and turning, Proceedings of the 1999 ASME Design Engineering Technical Conferences, Las Vegas, NV, 12-15, September 1999.
L. Masset, J.-F. Debongnie, P. Beckers, Face milling and turning simulation with the finite element method, Proceedings of the Fourth International ESAFORM Conference on Metal Forming, Liège, 23-25 April 2001, 627-630.
Samcef finite element code, Système d'Analyse des Milieux Continus par la Méthode des Eléments Finis, www.samcef.com www.samcef.com
Schulz H. Bimschas K. Optimization of precision machining by simulation of the cutting process Ann. CIRP 42/1 1993 55-58
H. Schulz, K. Glockner, Simulation of the deflection of workpieces due to the cutting forces, Final report, Study for Renault, 1994.
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