12. Publicación Docentes
http://repositorio.espe.edu.ec/handle/21000/18824
2024-03-28T13:23:25ZBehavior of Influencing Parameters of the Fused Deposition Modeling Process in Dissimilar Combinations: Polymer-3D Printer
http://repositorio.espe.edu.ec/handle/21000/36321
Behavior of Influencing Parameters of the Fused Deposition Modeling Process in Dissimilar Combinations: Polymer-3D Printer
Piovan, Marcelo Tulio; Riofrío Villena, Patricio Gustavo
The proliferation of 3D printers and the availability of low-cost polymeric materials has allowed the Fused Deposition Modeling (FDM) process to expand its participation in the Additive Manufacturing (AM) market. In this work, the mechanical properties of typical polymers are characterized using two dissimilar material and FDM printer combinations, contrasting a low cost combination with a higher cost one. The modulus of elasticity and the tensile strength of acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA) polymers are determined with standardized ASTM and ISO tests considering the effect of the infill density, layer thickness and filament color. It was mainly found that the increase in layer thickness generates appreciable reductions in the modulus of elasticity and tensile strength in the range of 12–17% considering the two polymers and that the influence of the filament color produces the widest range of variation, between 3% and 19% in the mechanical properties. In the previous ranges, the highest values correspond to PLA polymer and the lowest to ABS polymer, this may be due to the difference in quality of the polymers.
2023-01-29T00:00:00ZInteractions of the process parameters and mechanical properties of laser butt welds in thin high strength low alloy steel plates
http://repositorio.espe.edu.ec/handle/21000/31962
Interactions of the process parameters and mechanical properties of laser butt welds in thin high strength low alloy steel plates
RIOFRIO VILLENA, PATRICIO GUSTAVO
2020-02-11T00:00:00ZEffect of the heat input on the mechanical properties of thin laser butt welds inan HSLA steel.
http://repositorio.espe.edu.ec/handle/21000/31961
Effect of the heat input on the mechanical properties of thin laser butt welds inan HSLA steel.
RIOFRIO VILLENA, PATRICIO GUSTAVO
2020-03-26T00:00:00ZFatigue performance of thin laser butt welds in HSLA steel
http://repositorio.espe.edu.ec/handle/21000/30904
Fatigue performance of thin laser butt welds in HSLA steel
RIOFRIO VILLENA, PATRICIO GUSTAVO
2021-09-22T00:00:00Z