ENSAM, France
Juan Delmastro
Biography
Juan Delmastro is a Mechanical Engineer from Argentina. In 2019 he obtained his Master’s degree, and from 2021 to 2024 he worked as a Lab Analyst at the Metals Physics Division in Bariloche, Argentina. During this time, he had the opportunity to teach undergraduate courses on Classical Mechanics and Heat and Mass Transfer at Balseiro’s Institute, Argentina. He is currently a researcher pursuing a PhD degree at the École Nationale Supérieure d’Arts et Métiers (ENSAM), Talence, France. His project is under the AUFRANDE doctoral program, co-funded by the European Union.
Conferences
Room |
Date |
Hour |
Subject |
|---|---|---|---|
| Room 7 |
26-03-2026 |
10:55 am – 11:15 am |
59 Effect of LPBF process parameters on the production of NiTi thin struts |
Conferences Details
59 Effect of LPBF process parameters on the production of NiTi thin struts
The current work aims to study the effect of process parameters on the manufacturing ofsuperelastic NiTi thin struts, obtained via laser powder bed fusion (LPBF). By building single tracks and characterizing their geometry and continuity, the laser power and scanning speed space was mapped in the range of [50 – 275] W and [125 – 1375] mm/s. A suitable processing window was then selected, and 5 mm tall single struts where successfully produced with 40 different processing parameters in 3 different diameters (1, 0.7 and 0.4 mm). Each condition was characterized, analysing shape
deviation and surface rugosity, phase transformation behaviour and microstructure. EBSD analysis revealed a complex microstructure, with fine equiaxed grains near the surface and elongated columnar grains in the centre. The phase composition and its distribution in the material appear to be strongly dependant on the processing conditions.
Keywords: NiTi; Additive manufacturing; Lattice; Shape memory
