- Additive Manufacturing and 3D Printing Technologies
- Bone Tissue Engineering Materials
- Additive Manufacturing Materials and Processes
- Electrospun Nanofibers in Biomedical Applications
- Welding Techniques and Residual Stresses
- Cellular and Composite Structures
- 3D Printing in Biomedical Research
- Prosthetics and Rehabilitation Robotics
- Innovations in Concrete and Construction Materials
Instituto Tecnológico de Costa Rica
2018-2025
University of Oulu
2023-2025
In the field of additive manufacturing, design and fabrication lattice structures have garnered substantial attention, particularly for their potential in advanced material applications. This study focuses on mechanical properties titanium alloy Ti64 fabricated by Laser Powder Bed Fusion. It examines features two structure types, TPMS Gyroid Stochastic Voronoi, analyzing interplay. To evaluate properties, methodologies to compute stress were employed: Method A, nominal diameter calculations...
Purpose This study compares the fatigue performance and biocompatibility of as-built chemically etched Ti-6Al-4V alloys in TPMS-gyroid stochastic structures fabricated via Powder Bed Fusion Laser Beam (PBF-LB). aims to understand how complex lattice post-manufacturing treatment, particularly chemical etching, affect mechanical properties, surface morphology, resistance these metamaterials for biomedical applications. Design/methodology/approach Selective Melting (SLM) technology was used...
Titanium-based lattice structures have gained significant attention in biomedical engineering due to their potential mimic bone-like behavior and improve implant performance. This study evaluates the performance of bio-inspired Ti64 TPMS Gyroyd Stochastic fabricated via Powder Bed Fusion-Laser Beam (PBF-LB), focusing on in-vivo ex-vivo mechanical biological responses for applications. Utilizing an SLM 280 HL printer, samples exhibited notable geometric accuracy essential integrity. The...
The new possibilities in Additive Manufacturing allow the development and manufacture of functional, high strength, customizable 3D printing prosthetic components. This study characterizes structural resistance, under static loads, a printed foot fabricated with additive manufacturing continuous filament deposition. Two conditions (keel heel tests) were evaluated according to standard ISO 22675. Peak forces 4106 N applied maximum deformation 40.8 mm, as result, no visible fractures found...
While additive manufacturing of metals has been rapidly growing industry for the past decade, quality and fatigue properties materials are still not very well known. In this study, we focus on laser powder bed fusion (PBF-LB) manufactured Ti6Al4V. The as built material was compared to heat treated counterpart by microstructural analysis, mechanical properties, impact toughness strength were determined. Bending testing conducted both polished reveal effect surface roughness. results showed...