| Powder Metallurgy: An old technique became a sustainable component of the additive metal manufacturing Georges Kipouros1; 1MATERIALS ENGINEERING, DALHOUSIE UNIVERSITY, Halifax, Canada; PAPER: 132/SISAM/Regular (Oral) SCHEDULED: 16:20/Thu. 24 Oct. 2019/Dr. Christian Bernard ABSTRACT: Powder metallurgy has been established in the past sixty years as an old technique, deriving its roots from ancient civilizations, to produce ferrous, copper and zinc products. It was only twenty years ago that it was demonstrated in our laboratory for the first time that it is possible to produce aluminum powder metallurgy parts by using a small addition of magnesium in pure aluminum. It has now become an industry of its own, producing millions of parts used in automotive applications. In this presentation, attempts to extend the powder metallurgy to magnesium metal and its alloys will be discussed. In the last decade, the machine design and its artificial intelligence led to the utilization of 3D metal printing or additive manufacturing. The emphasis has been shifted to the computer aspects of the process although there are still fundamental difficulties on sintering metals. References: 1. W.D. Judge and G.J. Kipouros, “Aluminum PM Alloys: Structure and Porosity”, in Encyclopedia of Aluminum and Its Alloys (EAIA), Ed. G.E. Totten, M. Tiryakioglu and O. Kessler, CRC Press, Taylor and Francis, pp. 1977-1995, (2018). 2. P. Burke, Y. G. Kipouros, W.D. Judge and G. J. Kipouros, Surprises and Pitfalls on the Development of Magnesium Powder Metallurgy Alloys, in Magnesium and Its Alloys: Technology and Applications, Ed. G.E. Totten, L. Dobrzanski, Taylor & Francis (in print) (2019). 3. P. Burke, G. J. Kipouros, D. Fancelli and V. Laverdiere, “Sintering Fundamentals of Magnesium Powders”, Can. Metall. Q., 48(2), 123-132 (2009). 4. P. Burke and G.J. Kipouros, “Powder Metallurgy of Magnesium: Is it Feasible?”, Magnesium Technology 2010, Ed. Sean R. Agnew, et. al., The Minerals, Metals & Materials Society, 115-120 (2010). |
