How does the choice of ABS filament affect the mechanical properties and dimensional stability of 3D printed parts?5 answersThe choice of ABS filament has a significant impact on the mechanical properties and dimensional stability of 3D printed parts. The addition of short carbon fiber (SCF) filler to ABS improves the mechanical characteristics, including tensile strength and fracture toughness. Printing speed also affects the tensile strength of ABS parts, with higher speeds resulting in lower mechanical performance. Other parameters such as layer thickness, filling angle, and infill density also influence the mechanical properties of 3D printed ABS parts, with infill density being the most influential parameter. Additionally, the choice of printing parameters, such as infill percentage, extruder temperature, and layer thickness, can optimize the failure load, weight, fabrication time, and surface roughness of PLA materials. Finally, the choice of polymer material for 3D printing, such as polycarbonate and ABS-PC, can impact the mechanical properties, with minimal degradation observed after exposure to UV-C radiation.
How to apply ml model for 3D printing process?5 answersMachine learning (ML) models can be applied to the 3D printing process to improve parameters and predict the quality of printed components. ML algorithms, such as neural networks, are effective in recognizing patterns and regression analysis, making them suitable for controlling additive manufacturing (AM) processing parameters. Physics-informed machine learning approaches, like physics-informed neural networks (PINNs), can be used to model and solve thermal processes in 3D printing of metal components, allowing for accurate estimation and prediction of temperature distribution. Data-driven methods, coupled with ML algorithms, enable fast and computationally efficient predictions of microstructures in additively manufactured metals. ML models can be used in both open-loop and closed-loop approaches to monitor the effects of processing parameters on the quality of printed parts, with closed-loop control systems generating optimized processing parameters for better part properties.
What are the mechanical properties of fdm printed abs?5 answersFDM-printed ABS has been studied in several papers to determine its mechanical properties. The strength of FDM-printed ABS parts is influenced by various printing parameters. Infill density, layer thickness, and shell count have been found to have a significant effect on the ultimate tensile strength of the printed parts. Printing speed is another parameter that affects the tensile strength of FDM-ABS samples, with different printing speeds resulting in different mechanical performance. PLA has been found to have higher tensile and flexural strength compared to ABS, while ABS has greater water absorption. Other parameters such as extrusion temperature, feed rate, and layer height also impact the functional performance of FDM-printed ABS, with different combinations of these variables resulting in varying tensile and compressive strengths. Additionally, the addition of carbon fiber in ABS has been shown to increase the mechanical properties of the printed parts.
What is fused deposition modelling?4 answersFused deposition modelling (FDM) is a type of 3D printing that falls under the category of material extrusion. It is a cost-effective additive manufacturing technique. FDM is widely used in the manufacturing industry for efficient and successful production. FDM offers advantages such as lower production costs, shorter lead times, ease of use, and the ability to deal with complicated cavities and geometries. FDM has been used to design and obtain auxetic structures, which have enhanced mechanical properties and a higher compression resistance. FDM is used to create prototypes with complex or particular geometry in a fast and cheap way.
Allowable unit cell dimension for 316 steel lattice structure using 3D printing ?5 answersThe allowable unit cell dimension for 316 steel lattice structure using 3D printing is not explicitly mentioned in the abstracts provided. However, the abstract by Firsov et al.discusses the deformation behavior of 3D printed steel samples with various lattice structures, but does not mention the specific unit cell dimensions for 316 steel. The abstract by Kulkarni et al.focuses on the design, fabrication, mechanics, and reliability of lattices with repeating cubic unit cells, but does not mention the specific steel material used. The abstract by Hanks and Freckerproposes a ground structure topology optimization method for systematic unit cell optimization, but does not mention the specific steel material or dimensions. Therefore, further research or information is needed to determine the allowable unit cell dimension for 316 steel lattice structure using 3D printing.
Fused deposition modeling in composite materials?5 answersFused deposition modeling (FDM) is a popular additive manufacturing method used for composite materials. Research in this field is progressing rapidly, with the goal of developing advanced materials for industries such as aeronautics, biomedicine, construction, and defense. The development of new composite filaments for FDM is a fast-growing field, with numerous scientific papers published every year. Commercial filaments for FDM primarily consist of neat thermoplastics, but it is also possible to process thermoplastic-matrix composite filaments. Processing composite materials for FDM presents technical challenges due to the modification of thermal and rheological properties caused by the filler. Off the shelf composite materials have been developed, typically with a base material of a standard FDM printed polymer and additives such as metal particulates or lightweight filler. These composites can be characterized for their physical properties, such as acoustic sound speed and elastic moduli.