Browsing by Author "Gómez Gras, Giovanni"
Now showing items 1-11 of 11
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Additively manufactured three-dimensional lightweight cellular solids: Experimental and numerical analysis
Fornés Garriga, Albert; Gómez Gras, Giovanni; Pérez Martínez, M. (Marco) (Materials & Design 2023, 226, 111641, 2023-02)The development of cellular solids is one of the research fields in which additive manufacturing has made relevant progress in producing lightweight components and enhancing their performance. This work ... -
Ball-burnishing effect on deep residual stress on AISI 1038 and AA2017-T4
García Granada, Andrés-Amador; Gómez Gras, Giovanni; Reyes Pozo, Guillermo; Travieso Rodriguez, Jose Antonio; Jerez Mesa, Ramón (Materials and Manufacturing Processes. Vol. 32, No.11 (2017), p.1279-1289, 2017-05)Ball-burnishing induces compressive residual stresses on treated materials by the effect of plastic deformation. The result is an increase in the fatigue life of the treated part, retarding the initiation ... -
Comparative Analysis of Chemical, Thermal, and Mechanical Post-Process of Fused Filament Fabricated Polyetherimide Parts for Surface Quality Enhancement
Chueca de Bruijn, Ariadna; Gómez Gras, Giovanni; Pérez Martínez, M. (Marco) (Materials 2021;14(19):5880, 2021-10-08)Additive manufacturing technologies are increasingly being used in production systems because they shorten product development time and production cost, but surface integrity remains a limitation to ... -
Experimental study on the accuracy and surface quality of printed versus machined holes in PEI Ultem 9085 FDM specimens
Gómez Gras, Giovanni; Pérez Martínez, M. (Marco); Fabregas-Moreno, Jorge; Reyes Pozo, Guillermo (Rapid Prototyping Journal, 2021-12-17) -
Mechanical performance of 3D-printed biocompatible polycarbonate for biomechanical applications
Gómez Gras, Giovanni; Abad, Manuel David; Pérez Martínez, M. (Marco) (Polymers. Vol.13, n.21 (2021), 3669, 2021-10-25)Additive manufacturing has experienced remarkable growth in recent years due to the customisation, precision, and cost savings compared to conventional manufacturing techniques. In parallel, materials ... -
Mechanical performance of additively manufactured lightweight cellular solids: Influence of cell pattern and relative density on the printing time and compression behavior
Forés-Garriga, Albert; Gómez Gras, Giovanni; Pérez Martínez, M. (Marco) (Materials & Design Volume 2022, 215, 110474, 2022-03)A comprehensive investigation is presented on the Fused Filament Fabrication (FFF) technology’s possibilities to create cellular solids with a broad spectrum of specific stiffness and strength, modifying ... -
Mechanical strengthening in S235JR steel sheets through vibration-assisted ball burnishing
Gómez Gras, Giovanni; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Rue-Mascarell, Jaume; Travieso Rodriguez, Jose Antonio (Metals. Vol.10, n.8 (2020), 1010, 2020-07)The superficial effect of hardening caused after vibration-assisted ball burnishing and its consequences in the tensile behavior of a carbon steel material are studied in this paper. As ball burnishing ... -
Optimization of a combined thermal annealing and isostatic pressing process for mechanical and surface enhancement of Ultem FDM parts using Doehlert experimental designs
Chueca de Bruijn, Ariadna; Gómez Gras, Giovanni; Fernández Ruano, Laura; Farràs-Tasias, Laia; Pérez Martínez, M. (Marco) (Journal of Manufacturing Processes. 2023;85:1096-1115, 2022-12-24)The mechanical anisotropy of Fused Deposition Modeling (FDM) fabricated parts due to voids and non-uniform bond formation between rasters represents a major challenge for the widespread adoption of this ... -
Role of infill parameters on the mechanical performance and weight reduction of PEI Ultem processed by FFF
Pérez Martínez, M. (Marco); Gómez Gras, Giovanni; Reyes Pozo, Guillermo; Forés-Garriga, Albert (Material & Design. Vol. 193 (2020), 108810, 2020-08)In comparison with conventional manufacturing technologies, Fused Filament Fabrication (FFF) offers countless benefits. It broadens the horizons of the design of structural components with high geometrical ... -
Selective dissolution of polysulfone support material of fused filament fabricated Ultem 9085 parts
Chueca de Bruijn, Ariadna; Gómez Gras, Giovanni; Pérez Martínez, M. (Marco) (Polymer Testing 2022, 108, 107495, 2022-04)One of the main advantages of 3D printing lies in the fact that the desired object is constructed layer by layer, enabling the production of complex geometries otherwise unfeasible with conventional ... -
Time-dependent mechanical properties in polyetherimide 3D-Printed parts are dictated by isotropic performance being accurately predicted by the generalized time hardening model
García Granada, Andrés-Amador; Reyes Pozo, Guillermo; Gómez Gras, Giovanni; Puigoriol Forcada, Josep Maria; Salazar Martín, A.G. (Molecules. Vol.12, n.3 (2020), 678, 2020-03)The Fused-Deposition Modelling (FDM) technique has transformed the manufacturing discipline by simplifying operational processes and costs associated with conventional technologies, with polymeric ...