Chieragatti, Rémy and Espinosa, Christine and Lacome, Jean-Luc and Limido, Jérôme and Mabru, Catherine and Salaün, Michel Modelling High Speed Machining with the SPH Method. (2008) In: 10th International LS-DYNA Users Conference, 08-11 June 2008, Dearborn, United States.
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The purpose of this work is to evaluate the use of the Smoothed Particle Hydrodynamics (SPH) method within the framework of high speed cutting modelling. First, a 2D SPH based model is carried out using the LS-DYNA® software. SPH is a meshless method, thus large material distortions that occur in the cutting problem are easily managed and SPH contact control allows a “natural” workpiece/chip separation. The developed SPH model proves its ability to account for continuous and shear localized chip formation and also correctly estimates the cutting forces, as illustrated in some orthogonal cutting examples. Then, The SPH model is used in order to improve the general understanding of machining with worn tools. At last, a milling model allowing the calculation of the 3D cutting forces is presented. The interest of the suggested approach is to be freed from classically needed machining tests: Those are replaced by 2D numerical tests using the SPH model. The developed approach proved its ability to model the 3D cutting forces in ball end milling.
|Item Type:||Conference or Workshop Item (Paper)|
|Audience (conference):||International conference proceedings|
|Institution:||Other partners > IMPETUS Afea SAS (FRANCE)|
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Département de Mécanique des Structures et Matériaux - DMSM (Toulouse, France) - Fatigue des Matériaux Métalliques
Département de Mécanique des Structures et Matériaux - DMSM (Toulouse, France) - Méthodes Numériques Avancées
|Deposited By:||ESPINOSA Christine|
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