Etude fondamentale de l’assistance cryogénique pour application au fraisage du Ti6Al4V

Abstract : Abstract: The main challenges facing the industry are to satisfy ever more demands in terms of sustainable development, optimization of costs and deadlines. The industrial sectors manufacturing products with high added value in aeronautics and space, are continously in a perspective of improvement the manufactured products and processes. The use of materials such as titanium alloys or nickel-based superalloys is common. Its are "complex to machine". Difficulties in the use of tools, parts deformations or poor surface qualities become problematic. It is in this perspective that the cryogenic assistance in machining can answer the various problems. This technology can provide answers to the industrialization requirements: limiting the rising temperature, no post-machining cleaning and no use of cutting fluids, harmful, for operators. This leads to new questions such as the routing of the cryogenic fluid to the desired zones, the optimization of the process or the impact of a cold fluid on the tools and the parts. New technological and scientific locks are emerging. This PhD thesis propose to study them.
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Pierre Lequien. Etude fondamentale de l’assistance cryogénique pour application au fraisage du Ti6Al4V. Génie mécanique [physics.class-ph]. Ecole nationale supérieure d'arts et métiers - ENSAM, 2017. Français. ⟨NNT : 2017ENAM0038⟩. ⟨tel-01743850⟩

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