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Evaluating deposition parameters for Ti-15Mo alloy obtained by additive manufacturing (DED - Directed Energy Deposition)

Grant number: 21/05560-0
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2021
Effective date (End): August 31, 2022
Field of knowledge:Engineering - Mechanical Engineering - Manufacturing Processes
Principal Investigator:Reginaldo Teixeira Coelho
Grantee:Pedro Henrique Teodoro de Almeida
Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil


Additive Manufacturing (AM) allows the manufacturing of parts with complex geometry and is in constant development, currently performing the manufacturing of parts with metallic alloys. Thus, the Directed Energy Deposition process allows the construction of parts in situ increasing, even more, the flexibility of manufacturing and being currently employed in high-technological industries. However, to achieve the desired quality of the manufactured part, it is necessary to control some complex thermal interactions that are directly affected by manufacturing parameters. The main ones are the laser power, nozzle gas flow, machine feed rate, and deposition strategy together with some properties of the powder. Mechanical properties of the fabricated part are also dependent on the set of user parameters. The values are different for each metal alloy, requiring prior evaluation before its use. In such a context, the project aims at evaluating the parameters required to produce Ti-15Mo alloy using DED. Such alloy has an increasing value due to its compatible mechanical properties for prosthetics and because it does not present cytotoxicity in vitro, being promising for its use as biomaterial. (AU)

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