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Metal cutting modelling SPH approach
by J. Limido, C. Espinosa, M. Salaun, C. Mabru, R. Chieragatti, J.L. Lacome
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 9, No. 3/4, 2011

 

Abstract: 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. The developed SPH model proves its ability to account for continuous and shear localised 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 hybrid 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.

Online publication date: Wed, 13-Apr-2011

 

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