Conception et réalisation d’une matrice pour l’hyper- déformation des matériaux lors du procédés d’extrusion - compression cycliqu

Abstract

The objective of this thesis is to realize a matrix allowing the improvement of physical and mechanical properties of materials. In this work we discussed the generalities of nanomaterials and the procedures of the different techniques of severe plastic deformation SPD, and we also presented the dimensioning of the elements of the matrix, and we gave generalities on the mechanical manufacture, and we finished this work with a study of manufacture (Tables of range of machining) and the realization of the matrix. We finished this work with a thermal treatment carried out for the materials used in the realization. For the dimensioning of the matrix in respected the condition of the resistance, the maximum stress inferior to the admissible stress