240 documents found, page 1 of 24
New trends of additive manufacturing using materials based-on natural fibers an...
Ribeiro, J.E.; Rodríguez-Martín, Manuel; Barreiro, Joaquín; Fernández-Abia, Ana; García-Martín, Roberto; Rocha, João; Martínez-Pellitero, SusanaPolymeric materials based on natural fibers and minerals are currently being researched and their development is still in its infancy but is expected to increase in the coming years (being nowadays a hot topic). Their main advantage is that they make it possible to use waste and by-products of agricultural, forestry, and mineral origin to generate materials for Additive Manufacturing. Since their use reduces th...
2nd. International Workshop on Additive Manufacturing and Sustainability (IWAM)...
Rocha, João; Ribeiro, J.E.; Santos, Jorge; Lima, Rui A.In recent years, the manufacturing processes have undergone a profound transformation, driven by the rapid evolution of additive manufacturing (AM) technologies. What began as a tool primarily for prototyping through stereolithography has now expanded into a versatile and innovative field capable of producing functional, end-use components across a wide range of industries. From fused deposition modeling (FDM) ...
Progress in Nanofluid Technology: From Conventional to Green Nanofluids for Bio...
Cardoso, Beatriz D.; Souza, Andrews; Nobrega, Glauco; Afonso, Inês Santos; Neves, Lucas Boniatti; Faria, Carlos; Ribeiro, J.E.; Lima, Rui A.Nanofluids (NFs), consisting of nanoparticles (NPs) suspended in base fluids, have attracted growing interest due to their superior physicochemical properties and multifunctional potential. In this review, conventional and green NF technology aspects, including synthesis routes, formulation, and applications, are discussed. Conventional NFs, involving NPs synthesized using physical and chemical approaches, have...
A Comprehensive Review of Fused Filament Fabrication: Numerical Modeling Approa...
Enriconi, Maria; Rodriguez, Rocío; Araújo, Márcia; Rocha, João; García-Martín, Roberto; Ribeiro, J.E.; Pisonero, Javier; Rodríguez-Martín, ManuelFused Filament Fabrication (FFF) has become a widely adopted additive manufacturing technology due to its cost-effectiveness, material versatility, and accessibility. However, optimizing process parameters, predicting material behavior, and ensuring structural reliability remain major challenges. This review analyzes state-of-the-art computational methods used in FFF, which are categorized into four main areas:...
Optimization of Machining Parameters for the Fixed Pocket Cycle
Stein, Felipe Yukio Miyasaki; Giacomitti, Nickolas; Valério, Gustavo; Paulo, Jorge; Ribeiro, J.E.; Rocha, JoãoIn a competitive industrial setting, optimizing machining processes is important for enhancing surface quality and productivity. This study focuses on optimizing pocket milling parameters for 5083 H111 aluminum alloy using three toolpath strategies: Zig-Zag, Parallel Spiral, and One-Way. To achieve these goals, the Taguchi method, Grey Relational Analysis (GRA), ANOVA, and visual amplification were employed to ...
CFD analysis of multi-layer cooling channels in three-dimensionally structured ...
Costa, Sharlane; Capela, Paulina; Hassui, Amauri; Ribeiro, J.E.; Pereira, Mário; Soares, DelfimMinimizing heat damage and surface integrity loss in grinding depends on effective cooling. Conventional techniques, however, suffer with low efficiency because of the fast air barrier restricting fluid access. Grinding wheels with internal cooling channels have been suggested to solve this; nonetheless, the impact of channel geometry and multi-layer topologies is yet unknown. This work investigates their effec...
Performance of 3D-structured grinding wheels with multi-layer internal cooling ...
Costa, Sharlane; Capela, Paulina; Hassui, Amauri; Ribeiro, J.E.; Pereira, Mário; Soares, DelfimGrinding is a key machining process in industries that demand high precision and surface quality. However, the conventional flood cooling method is often ineffective due to the air barrier formed by the rotating wheel, which restricts fluid access to the contact zone. This causes thermal instability, high coolant use, and environmental impact. To overcome these limitations, this study investigates alumina grind...
Mechanical and optical properties assessment of an innovative PDMS/beeswax comp...
Ariati, Ronaldo; Souza, Andrews; Souza, Maria S.; Zille, Andrea; Soares, Delfim; Lima, Rui A.; Ribeiro, J.E.Polydimethylsiloxane (PDMS) is an elastomer that has received primary attention from researchers due to its excellent physical, chemical, and thermal properties, together with biocompatibility and high flexibility properties. Another material that has been receiving attention is beeswax because it is a natural raw material, extremely ductile, and biodegradable, with peculiar hydrophobic properties. These materi...
Recent Advances of PDMS In Vitro Biomodels for Flow Visualizations and Measurem...
Souza, Andrews; Nobrega, Glauco Tapijara Vallicelli; Neves, Lucas Boniatti; Barbosa, Filipe; Ribeiro, J.E.; Ferrera, Conrado; Lima, Rui A.Polydimethylsiloxane (PDMS) has become a popular material in microfluidic and macroscale in vitro models due to its elastomeric properties and versatility. PDMS-based biomodels are widely used in blood flow studies, offering a platform for improving flow models and validating numerical simulations. This review highlights recent advances in bioflow studies conducted using both PDMS microfluidic devices and macro...
Mapping and prospective of additive manufacturing in the context of Industry 4....
Rodríguez-Martín, Manuel; Domingo, Rosario; Ribeiro, J.E.This study aims to investigate the scientific impact of additive manufacturing in recent years, considering its evolution as an Industry 4.0 technology and also in the current context of Industry 5.0. For this aim, advanced statistics and scientometric tools have been used. Design/methodology/approach – This study aims to explore the trends and impacts of additive manufacturing, focusing on its evolution and it...