Esta es nuestra última selección de publicaciones y patentes mundiales en inglés sobre Fabricación Aditiva, entre muchas revistas científicas en línea, clasificadas y centradas en fabricación aditiva, impresión 3D, deposición fundida, sinterización, estereolitografía, impresión de metales, prototipado rápido, capa por capa y deposición de energía.
Apparatus and process for ammonia cracking catalyst activation
Patent published on the 2025-05-22 in AU under Ref AU2024227784 by AIR PRODUCTS AND CHEMICALS INC (Shaw Andrew, Shelley Jacob, Xie Kui, Saloway Simon Craig, Patil Dhaval Dhondu)
Abstract: An apparatus and process for the activation of catalyst material utilized in ammonia cracking can include an initial use of hydrogen and heat to perform an initial stage of catalyst activation and a subsequent use of ammonia and heat to perform a subsequent state of catalyst activation. The subsequent use of ammonia can be configured so that different catalytic material at different plant elements are activated in a pre-selected sequence to provide activation of the catalytic material utilized i[...]
Our summary: Apparatus and process for activating catalyst material used in ammonia cracking, utilizing hydrogen and heat followed by ammonia and heat in a pre-selected sequence to avoid excess temperatures and sintering.
ammonia, cracking, catalyst, activation
Patent
Dynamic hydrogel compositions
Patent published on the 2025-05-22 in AU under Ref AU2023375461 by THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV (D'aquino Andrea, Dong Changxin, Meany Emily, Williams Christian, Nguyen Leslee, Appel Eric, Song Ye Eun)
Abstract: Compositions and methods for delivery of therapeutic agents to an individual in need thereof, for prevention/reduction of tissue adhesion, and for 3D printing are disclosed herein. In some embodiments, the composition comprises octadecyl modified hydroxypropyl methylcellulose (HPMC-C18) and a surfactant or cyclic polysaccharide, wherein the composition is a hydrogel that exhibits dynamic properties.[...]
Our summary: Dynamic hydrogel compositions for delivery of therapeutic agents, prevention of tissue adhesion, and 3D printing.
hydrogel, compositions, delivery, therapeutic agents
Patent
Design Guide for Hybrid-Additive Manufacturing of Inconel 718 Combining PBF-LB/M and In Situ High-Speed Milling
Published on 2025-03-10 by David Sommer, Simon Hornung, Cemal Esen, Ralf Hellmann @MDPI
Abstract: As the correlation between design rules and process limitations is of the upmost importance for the full exploitation of any manufacturing technology, we report a design guide for hybrid-additive manufacturing of Inconel 718. Basic limitations need to be evaluated for this particular hybrid approach that combines laser powder bed fusion (PBF-LB/M) and in situ high-speed milling. Fundamental geometric limitations are examined with regard to the minimum feasible wall thickness, cylinders, overhang[...]
Our summary: Design guide for hybrid-additive manufacturing of Inconel 718 combining PBF-LB/M and in situ high-speed milling, Examination of geometric limitations, Derivation of design guidelines for reliable build process
hybrid-additive manufacturing, Inconel 718, PBF-LB/M, high-speed milling
Publication
Characterization and Modelling of Biomimetic Bone Through Additive Manufacturing
Published on 2025-03-10 by Niranjan Srinivasan, Mohsen Barmouz, Bahman Azarhoushang @MDPI
Abstract: The long-term success of bone implant scaffolds depends on numerous factors, such as their porosity, mechanical properties, and biocompatibility. These properties depend on the type of material, such as metals and their alloys or ceramics, and the procedure used to create the scaffolds. This study aims to find the biomimetic properties of aluminum 6061 (Al 6061) alloy through Digital Light Processing (DLP) and sintering. Hollow cylindrical Al 6061 samples are printed through the DLP process at 9[...]
Our summary: Long-term success of bone implant scaffolds depends on porosity, mechanical properties, and biocompatibility. Study aims to find biomimetic properties of Al 6061 alloy through DLP and sintering. Scaffold model created with anisotropic properties closer to trabecular bone.
Additive Manufacturing, Biomimetic Bone, Characterization, Modelling
Publication
Use of Biobased Resins Derived from Renewable Monomers for Sustainable 3D Fabrication Through Two-Photon Polymerization
Published on 2025-03-10 by Francisco Gontad, Jaime Cuartero, Sara Vidal, Nerea Otero, Natalia M. Schulz, Tobias Robert @MDPI
Abstract: This work demonstrates the fabrication of microstructures with formulations containing bio-based prepolymers derived from itaconic acid, commercial reactive diluents, photo initiators, and inhibitors, through two-photon polymerization. Lateral and vertical resolutions within the micron range can be achieved by the adjustment of laser scanning speed and pulse energy, and through the use of microscope objectives with high magnification and numerical aperture. The fabrication throughput can be slig[...]
Our summary: Fabrication of microstructures using biobased resins derived from renewable monomers through two-photon polymerization, achieving micron range resolutions and demonstrating feasibility for 3D microstructure fabrication.
Biobased Resins, Renewable Monomers, Two-Photon Polymerization, Microstructures
Publication
Method for multivariate testing, development, and validation of a material for an additive manufacturing device
Patent published on the 2025-03-06 in WO under Ref WO2025050019 by STRATASYS INC [US] (Ling Marshall [us])
Abstract: One variation of a method for generating a print file for a target part includes, during a first time period: accessing test characteristics of a test build formed of a material and test print parameters executed during fabrication of the test build; deriving functions for the material relating subsets of part characteristics and print parameters; and storing the functions in a material profile for the material. This variation of the method further includes, during a second time period succeedin[...]
Our summary: Method for multivariate testing, development, and validation of a material for an additive manufacturing device, including generating a print file for a target part based on material characteristics and user-defined part values.
multivariate testing, material development, additive manufacturing, print file generation
Patent
Aerosol-based 3d printing of nanoparticles
Patent published on the 2025-03-06 in WO under Ref WO2025049973 by UNIV OF MIAMI [US] (Kavadiya Shalinee [us], Biswas Pratim [us])
Abstract: Systems and methods for aerosol-based three-dimensional (3D) printing (A3DP) are provided and can be used for layer-by-layer printing of polymers, metals, and composite materials by melting their nanoparticles. A solution containing nanoparticles (of the material(s) to be 3D printed or their precursors) is atomized to produce droplets of the material. The solvent can then be evaporated using a dryer and/or a furnace, and particles can be fed into a 3D printing nozzle. The nozzle can be heated to[...]
Our summary: Systems and methods for aerosol-based three-dimensional (3D) printing (A3DP) involve atomizing a solution containing nanoparticles, evaporating the solvent, and feeding particles into a 3D printing nozzle to deposit semi-molten nanoparticles and print the structure.
Aerosol-based 3D printing, nanoparticles, A3DP, layer-by-layer printing
Patent
Sensor fusion with eddy current sensing
Patent published on the 2025-03-06 in WO under Ref WO2025049618 by DIVERGENT TECH INC [US] (Kaji Farzaneh [us], Torbatisarraf Seyedalireza [us], Kenworthy Michael Thomas [us])
Abstract: Systems and methods for powder bed additive manufacturing can include sensing a powder bed with an eddy current (EC) sensor to obtain an EC sensor measurement, sensing the powder bed with a secondary sensor to obtain a topographical measurement, and determining a property in the powder bed based on the EC sensor measurement and the topographical measurement.[...]
Our summary: Systems and methods for powder bed additive manufacturing involve sensor fusion with eddy current sensing, obtaining topographical measurements, and determining powder bed properties.
Sensor fusion, eddy current sensing, additive manufacturing, powder bed
Patent
