Author
Ramón Jerez-Mesa
Other affiliations: Polytechnic University of Catalonia, University of Toulouse
Bio: Ramón Jerez-Mesa is an academic researcher from University of Vic. The author has contributed to research in topics: Burnishing (metal) & Fused filament fabrication. The author has an hindex of 13, co-authored 29 publications receiving 438 citations. Previous affiliations of Ramón Jerez-Mesa include Polytechnic University of Catalonia & University of Toulouse.
Papers
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TL;DR: In this paper, the fatigue response of PLA parts manufactured through fused filament fabrication (FFF) was analyzed through an L27 Taguchi experimental design, which is run for two different infills: linear and honeycomb.
151 citations
TL;DR: The results show that the infill density is the most important parameter for both of the studied patterns and are useful to design and manufacture ABS end-use parts that are expected to work under oscillating periodic loads.
Abstract: In this paper, the fatigue response of fused filament fabrication (FFF) Acrylonitrile butadiene styrene (ABS) parts is studied. Different building parameters (layer height, nozzle diameter, infill density, and printing speed) were chosen to study their influence on the lifespan of cylindrical specimens according to a design of experiments (DOE) using the Taguchi methodology. The same DOE was applied on two different specimen sets using two different infill patterns—rectilinear and honeycomb. The results show that the infill density is the most important parameter for both of the studied patterns. The specimens manufactured with the honeycomb pattern show longer lifespans. The best parameter set associated to that infill was chosen for a second experimental phase, in which the specimens were tested under different maximum bending stresses so as to construct the Wohler curve associated with this 3D printing configuration. The results of this study are useful to design and manufacture ABS end-use parts that are expected to work under oscillating periodic loads.
54 citations
TL;DR: In this article, a design of experiments through Taguchi orthogonal arrays is applied to analyze the influence of five factors on fatigue life on PLA specimens, and five fatigue tests are performed for each combination of parameters.
51 citations
TL;DR: Results show that layer orientation is the most influential parameter, followed by layer height, filament width, and printing velocity, whereas the fill density and infill pattern show no significant influence.
Abstract: This paper aims to analyse the mechanical properties response of polylactic acid (PLA) parts manufactured through fused filament fabrication. The influence of six manufacturing factors (layer height, filament width, fill density, layer orientation, printing velocity, and infill pattern) on the flexural resistance of PLA specimens is studied through an L27 Taguchi experimental array. Different geometries were tested on a four-point bending machine and on a rotating bending machine. From the first experimental phase, an optimal set of parameters deriving in the highest flexural resistance was determined. The results show that layer orientation is the most influential parameter, followed by layer height, filament width, and printing velocity, whereas the fill density and infill pattern show no significant influence. Finally, the fatigue fracture behaviour is evaluated and compared with that of previous studies’ results, in order to present a comprehensive study of the mechanical properties of the material under different kind of solicitations.
49 citations
TL;DR: In this paper, the fatigue behavior of a polylactic acid-based composite reinforced with wood (trademarked as Timberfill) processed through fused filament fabrication is analyzed through rotating bending fatigue tests.
Abstract: In this paper, the fatigue behavior of a polylactic acid-based composite reinforced with wood (trademarked as Timberfill) processed through fused filament fabrication is analyzed through rotating bending fatigue tests. Originally, this material was developed with the aim of enhancing the resistance of PLA by increasing the inner friction between polymer filaments. This work aims to confirm whether the inclusion of wood delivers the expected mechanical advantages from a functional point of view. The effect of wood on the mechanical behavior of the material is also assessed by comparing the results to similar experimental observed on non-reinforced PLA specimens. Firstly, the optimal set of parameters and levels resulting in the highest number of cycles to failure are determined, and compared to those found for PLA, by applying a Taguchi L27 experimental array. Layer height, infill level and nozzle diameter prove to be the most influential parameters on fatigue life. During a second phase, a set of specimens manufactured through the best parameter set were tested at different stress levels to represent the S-N curve. Infinite life was observed for specimens loaded with a maximum stress of 17.9 MPa. Therefore, this value can be considered as a lower threshold of the endurance limit for Timberfill cylindrical parts subjected to cyclic bending stress. SEM observations reveal that wood has a detrimental effect on the PLA matrix, as is reduces the cohesion of deposited filaments, and increases the ductile behavior of the base material.
44 citations
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31 Oct 2001
TL;DR: The American Society for Testing and Materials (ASTM) as mentioned in this paper is an independent organization devoted to the development of standards for testing and materials, and is a member of IEEE 802.11.
Abstract: The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.
3,792 citations
TL;DR: In this article, the authors provide a database of the mechanical properties of additively manufactured polymeric materials fabricated using material extrusion (e.g., fused filament fabrication) and show that the properties of these materials are similar to those of polymeric composites.
Abstract: This article provides a database of the mechanical properties of additively manufactured polymeric materials fabricated using material extrusion (e.g., fused filament fabrication (FFF)). Mechanical...
225 citations
TL;DR: In this paper, the thermal and mechanical properties of carbon fiber reinforced polyamide 12 (PA12) composites for fused deposition modeling (FDM) process were reported. And the results indicated that the tensile strength and flexural strength of 10 wt% CF/PA12 composites are enhanced by 102.2% and 251.1% respectively.
182 citations
TL;DR: This is a comprehensive literature review in the domain of FDM focused on identifying the direction for future work to enhance the acceptability of F DM printed parts in industries.
Abstract: Fused deposition modelling (FDM) is the most economical additive manufacturing technique. The purpose of this paper is to describe a detailed review of this technique. Total 211 research papers published during the past 26 years, that is, from the year 1994 to 2019 are critically reviewed. Based on the literature review, research gaps are identified and the scope for future work is discussed.,Literature review in the domain of FDM is categorized into five sections – (i) process parameter optimization, (ii) environmental factors affecting the quality of printed parts, (iii) post-production finishing techniques to improve quality of parts, (iv) numerical simulation of process and (iv) recent advances in FDM. Summary of major research work in FDM is presented in tabular form.,Based on literature review, research gaps are identified and scope of future work in FDM along with roadmap is discussed.,In the present paper, literature related to chemical, electric and magnetic properties of FDM parts made up of various filament feedstock materials is not reviewed.,This is a comprehensive literature review in the domain of FDM focused on identifying the direction for future work to enhance the acceptability of FDM printed parts in industries.
166 citations
TL;DR: While significant progress has been made in laser powder bed fusion (L-PBF) for metal additive manufacturing (AM), there is still limited large scale adoption of this advanced manufacturing techniq as discussed by the authors.
Abstract: While significant progress has been made in laser powder bed fusion (L-PBF) for metal additive manufacturing (AM), there is still limited large scale adoption of this advanced manufacturing techniq
163 citations