Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Fabrication of Nickel parts using hydrogel pastes
Submission Author:
Luana Dalla Vecchia de Lima , RS , Brazil
Co-Authors:
Luana Dalla Vecchia de Lima, Allana Anniele Barros da Silva , Maicon Barcellos Chaves, Ana Cavalheiro, Luana Crozatti Rocha , Marcelle Melo de Oliveira, Natalia Daudt
Presenter: Luana Dalla Vecchia de Lima
doi://10.26678/ABCM.COBEM2023.COB2023-1267
Abstract
Additive manufacturing is an economical route for the production of high-value materials, such as nickel alloys used in the aerospace industry. In recent decades, new technologies have emerged enabling 3D printing of metallic powders. Among these technologies, 3D extrusion techniques frequently reported for the production of ceramic components, is an alternative for processing metal powders. This technology is suitable for testing new materials and producing small batches, as it enables the use of reduced amounts of raw materials and has a post-processing similar to those commonly used in powder metallurgy. In this study, we investigated the sinterability of nickel parts produced from Ni paste developed for 3D extrusion. For this purpose, we prepared a nickel paste by mixing nickel powder and a hydrogel. At this initial study samples were produced by deposition and compaction of nickel paste. Sintering behavior and microstructure were investigated using light and scanning electron microscopy, X-ray diffraction, and Vickers microhardness. The fabrication of nickel parts through 3D extrusion of the developed pastes are currently under investigation. 3D printing based on extrusion of metallic pastes can be an attractive route for the cost-effective production of small batches of complex shaped parts.
Keywords
Additive manufacturing, nickel alloys, aerospace materials, 3D extrusion
