Stratégies d'usinage et productivité en fraisage des surfaces complexes

Abstract : The manufacturing process of molds and dies has been largely modified by the use of new techniques like high-speed machining and polynomial interpolation. Its optimization imposes a complete integration between CAM, numerical controller and machining to take best account of the dynamic performance of the machine used. To illustrate this problem, we study in this communication the influence of the choice of the machining strategy and the type of interpolation over quality and machining time. Thus, we compare the constant scallop height machining strategy which optimizes surface covering, with the traditional machining strategy using parallel planes and the polynomial interpolation, which returns continues C2 tool paths to the usual linear interpolation. The analysis of tool path lengths, the machining time and the tool real mean speed along the path, makes it possible to define a classification of employment according to the geometrical form of the tool path.
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Christophe Tournier, Emmanuel Duc. Stratégies d'usinage et productivité en fraisage des surfaces complexes. 16ème Congrès Français de Mécanique, Sep 2003, Nice, France. ⟨hal-01223051⟩

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