Optimization of the formulation and post-treatment of stainless steel for rapid manufacturing

Rapid prototyping process called Optoform shapes functional parts from a photocurable paste. This paste contains metal powder, resin, UV photoinitiator and wetting agent. After processing on the Optoform machine, a post-treatment is applied (debinding+sintering). During the post-treatment, the residual carbon coming from the resin modifies the composition of the metal and its melting point. This modification affects densification mechanisms, which leads to a residual porosity that lowers mechanical characteristics. We will present theoretical consideration leading to the optimization of the formulation. To improve the process, bimodal powder is used and thermal treatment is adapted. (c) 2007 Elsevier B.V. All rights reserved

Sur Une D\ue9formation De La Tige Des Sapins

Volume: 6Start Page: 270End Page: 27

Expériences sur les machines a percer les métaux : exécutées par ordre de M. le Général d'artillerie Mazure...

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