Daño en partes de manufactura aditiva reforzadas por fibras continuas

Abstract

La fabricación aditiva (AM),y más específicamente la impresión 3D,ha comenzado una revolución de la industria de la manufactura al proporcionar capacidades de producción para piezas que eran imposibles de fabricarhace algunos años. Una tecnología bastante reciente,desarrollada porMarkforged,ha elevado estas capacidades a un nuevo nivel al permitir la impresión de compuestos de matriz polimérica con refuerzo continuo de fibra. Sin embargo, por ser este un método nuevode fabricación, no existe un modelo consolidado para predecir las características mecánicas ni los modos de falla que presentan al estar sometidas a cargas. El presente trabajo recoge los estudios sobreel daño y falla progresiva en materiales compuestos de fibras largas producidos por manufactura aditiva

Most used materials in additive manufacturing in the metalworking sector: A systematic review

“…El modelado de disposición fundida (FDM), es una de los ejemplos de extrusión de materiales" [6]. [27] explica que el FDM es un proceso de manufactura aditiva donde un filamento es alimentado hacia un extrusor, calentado por encima del punto de fusión y depositado en una plataforma donde se solidifica y se consolida la parte.…”

Impact Strength for 3D-Printed PA6 Polymer Composites under Temperature Changes

“…The ISO/ASTM 52900 [9] categorizes the technologies regardless of the materials used. Material extrusion (MEX, also known as fused deposition modeling of fused filament fabrication) is the most widely used AM technology [33].…”

“…A moving platform is contained within the printing envelope where two nozzles, one containing a matrix polymer (Onyx ® ) and the other a continuous fiber, alternate to deposit a material layer by layer until the original topology is recreated. Commonly used materials are acrylonitrile butadiene styrene (ABS), polylactic acid (PLA), polypropylene (PP), polyethylene (PE), polyamide (PA, also known as nylon), polyetheretherketone (PEEK), polyetherimide (PEI), polyethersulfone (PES) or polyphenylene sulfide (PPS) [33]. This paper used nylon reinforced with short carbon fiber (Onyx ® ) as a matrix.…”

“…In addition, mechanical characterization for different matrix fillings from geometry and material properties is thoroughly reviewed in [36]. Commonly used materials are acrylonitrile butadiene styrene (ABS), polylactic acid (PLA), polypropylene (PP), polyethylene (PE), polyamide (PA, also known as nylon), polyetheretherketone (PEEK), polyetherimide (PEI), polyethersulfone (PES) or polyphenylene sulfide (PPS) [33]. This paper used nylon reinforced with short carbon fiber (Onyx ® ) as a matrix.…”

Notch Sensitivity Study in U-notched Polymers Built by Additive Manufacturing (AM)

“…So, a research project was launched to find the notch sensitivity of a thermoplastic polymer used in MEX so parts can be projected with commonly known design methods. AM processes generate time and material savings because producing one-part costs the same as producing many [14]. For example, the MEX technology developed by Markforged [31] uses a thermoplastic polymer as the matrix for continuous F fiber-reinforced composites.…”