[en] During rough machining operations of powertrain components, chatter vibrations may occur on the edges of flexible structures. This paper presents a numerical method, based on the finite element method and Tlusty's theory, which gives a chatter map of the machined surface. Each map point represents the greatest depth of cut leading to unconditionally stable cut. Each value depends on the structural damping, the cutting stiffness and the local static stiffness, which is computed using conventional linear elastic FEA. Chatter maps offer a convenient and effective decision support system for robust process design. As a case study, the rough milling operation of a crankcase deck face with a two-stage cutter is presented.
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
Belluco, Walter
Language :
English
Title :
Chatter maps for process design of powertrain components
Publication date :
May 2004
Event name :
7th CIRP International Workshop on Modeling of Machining Operations
Event organizer :
Ecole Nationale Supérieure d'Arts et Métiers (ENSAM)
Event place :
Cluny, France
Event date :
du 4 mai 2004 au 5 mai 2004
Audience :
International
Main work title :
Proceedings of the 7th CIRP International Workshop on Modeling of Machining Operations
Author, co-author :
Moisan, Alphonse
Poulachon, Gérard
Publisher :
Ecole Nationale Supérieure d'Arts et Métiers, Cluny, France
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