| Full text | |
| Author(s): |
Riccardo Augusto Moreira Montuori
[1]
;
Gustavo Figueira
[2]
;
Thiago Pacagnan Cataldi
[3]
;
Nelson Guedes de Alcântara
;
Claudemiro Bolfarini
;
Reginaldo Teixeira Coelho
[6]
;
Piter Gargarella
Total Authors: 7
|
| Affiliation: | [1] Universidade Federal de São Carlos. Departamento de Engenharia de Materiais - Brasil
[2] Universidade Federal de São Carlos. Programa de Pós-graduação em Ciência e Engenharia de Materiais - Brasil
[3] Universidade Federal de São Carlos. Departamento de Engenharia de Materiais - Brasil
[6] Universidade de São Paulo. Escola de Engenharia de São Carlos - Brasil
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Soldagem & Inspeção; v. 25, 2020-09-28. |
| Abstract | |
Abstract: The present study aimed to determine the optimum parameters for the Selective Laser Melting (SLM) additive manufacturing process of 316L steel in order to obtain high density parts, using equipment manufactured in Brazil. It was also carried out a complete structural characterization of both the raw material used (commercial powder) and the denser parts obtained. The mechanical properties of the parts produced by SLM were also evaluated and compared with parts manufactured by conventional methods. It was observed that the parts’ density increases with increasing energy density applied by the laser until maximum and constant density level is reached. A polynomial model was proposed correlating the energy density used with the final part density. The parts produced by SLM showed high densification (relative density greater than 99,49%) with low porosity homogeneously dispersed in the material. A cellular austenitic microstructure, typical of SLM process, was obtained. The hardness and microstructure of the parts are constant throughout their length and the compression test results showed that parts manufactured by SLM have strength and ductility similar to those manufactured by conventional methods. (AU) | |
| FAPESP's process: | 17/27031-4 - Effect of process parameters on the metallurgical characteristics of additive-manufactured alloys |
| Grantee: | Piter Gargarella |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 18/06691-9 - 316L steel commercial powder characterization |
| Grantee: | Thiago Pacagnan Cataldi |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 19/01829-5 - Additive manufacturing by selective laser melting of stainless steel 316L with boron additions: evaluation of corrosion and wear properties |
| Grantee: | Gustavo Figueira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 18/16898-0 - Selective laser melting of a 316L stainless steel |
| Grantee: | Riccardo Augusto Moreira Montuori |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 16/11309-0 - The study, development and application of a hybrid process: Additive Manufacturing (AM) plus High Speed Machining/Grinding (HSM/G) |
| Grantee: | Reginaldo Teixeira Coelho |
| Support Opportunities: | Research Projects - Thematic Grants |