Speaker
Description
Nowadays, 3D printing is a method of manufacturing widely employed in many areas as, for example, industrial design, construction, education or alimentary sector. Among the possible techniques, Fused Deposition Modeling (FDM) [1] is the Additive Manufacturing (AM) trendiest one, of great interest related to desktop 3D printers and the high capabilities from an industrial point of view.
With respect to the variety of materials existing in AM, polylactic acid (PLA) represents an interesting alternative [2]. This thermoplastic polymer, obtained from renewable resources, is extensively employed in 3D fabrication due to its good benefits as, for example, acceptable cost, adequate physical properties, good biocompatibility and low toxicity of its degradation products.
In the current study, 100% infill PLA specimens were fabricated by FDM with a 3D printer, varying the manufacturing temperature from 180 ºC to 260 ºC. The purpose is to analyze the influence of nozzle temperature on mechanical properties. In this sense, uniaxial tensile, compressive and three-point flexural strength tests were carried out, in an electro-mechanical universal testing machine, in order to obtain mechanical magnitudes for comparison. From the analysis or results, it is studied if the selection of extrusion temperature constitutes an important factor for obtaining a final product with the desired mechanical properties.
References
[1] S. Vyavahare, S. Teraiya, D. Panghal S. Kumar, Fused deposition modelling: a review, Rapid Prototyping J. 26 No. 1 (2020) 176–201.
[2] S. Farah, D.G. Anderson, R. Langer, Physical and mechanical properties of PLA, and their functions in widespread applications –A comprehensive review, Adv. Drug Deliver. Rev. 107 (2016) 367–392.
| Speaker Country | España |
|---|