Parcourir par sujet "3D printers"
Voici les éléments 1-20 de 26
-
Computer aided design and 3D printing for STEAM education: A technical reference guide for teachers
(2018)The paper will present the MAKEITREAL Technical Reference Guide, an open educational resource (OER) which provides technical information on Computer Aided Design (CAD) and 3D printing for STEAM education (Science, Technology, ... -
Endoscopic single-image size measurements
(2020)In the practice of clinical gastrointestinal endoscopy, precise estimation of the size of a lesion/finding, such as a polyp, is quintessential in diagnosis, e.g. risk estimation for malignancy. However, various studies ... -
An experimental investigation of surface roughness in 3D-printed PLA items using design of experiments
(2022)This work investigates the effect of 3D-printing parameters on surface roughness in polylactic acid printed material by adopting Taguchi's design of experiments approach. The control parameters under study were: number of ... -
An Exploratory Teaching Proposal of Greek History Independence Events based on STEAM Epistemology, Educational Robotics and Smart Learning Technologies
(2021)Digital technologies help students to delve into the process of scientific discovery. Curriculum integration of STEM contents based on constructivism theories of learning as a context to implement the Science, Technology, ... -
Friction Stir Welding Optimization of 3D-Printed Acrylonitrile Butadiene Styrene in Hybrid Additive Manufacturing
(2022)The feasibility of joining material extrusion (MEX) 3D-printed acrylonitrile butadiene styrene (ABS) plates with the friction stir welding (FSW) process was investigated herein as a promising topic of hybrid additive ... -
An internal combustion engine visualization physical prototype applying digital manufacturing
(2019)Nowadays computers have invaded all levels of production, thus improving the quality and quantity of products. Digital manufacturing involves all tools for design, simulate, and programming machine tools in order to ... -
Investigating the Impacts of Additive Manufacturing on Supply Chains
(2021)Additive manufacturing is an emerging technology that is gaining more ground in various production areas, like medicine, industrial production, and consumer product printing. Aim of this paper is to analyze the applications ... -
An investigation of surface quality characteristics of 3D printed PLA plates cut by CO2 laser using experimental design
(2021)In this work, two typical surface characteristics, i.e., mean surface roughness and angle of the kerf during laser processing of 3D-printed Polylactic Acid (PLA) plates with 4.00 mm in thickness, are investigated. A carbon ... -
Key parameters controlling surface quality and dimensional accuracy: a critical review of FFF process
(2022)Fused filament fabrication (FFF) is an additive manufacturing process, which constructs physical items by fused melt material, selectively deposited layer-by-layer through a heated extrusion mechanism. Parameters’ selection ... -
Laser cutting of 3D printed acrylonitrile butadiene styrene plates for dimensional and surface roughness optimization
(2022)3D printing (3DP) of polymers using fused filament fabrication (FFF) is not yet massively adopted in industrial environments due to shape accuracy and surface integrity limitations. However, the FFF process combined with ... -
Material extrusion 3D printing and friction stir welding: an insight into the weldability of polylactic acid plates based on a full factorial design
(2022)In this work, material extrusion (MEX) 3D-printed polylactic acid (PLA) thin workpieces were joined via the friction stir welding (FSW) process to evaluate the feasibility and the key features of the process. To ensure the ... -
The mechanical and physical properties of 3D-Printed materials composed of ABS-ZnO nanocomposites and ABS-ZnO microcomposites
(2020)In order to expand the mechanical and physical capabilities of 3D-printed structures fabricated via commercially available 3D printers, nanocomposite and microcomposite filaments were produced via melt extrusion, 3D-printed ... -
Mechanical response assessment of antibacterial PA12/TiO2 3D printed parts: parameters optimization through artificial neural networks modeling
(2022)This study investigates the mechanical response of antibacterial PA12/TiO2 nanocomposite 3D printed specimens by varying the TiO2 loading in the filament, raster deposition angle, and nozzle temperature. The prediction of ... -
Medical-Grade Polyamide 12 Nanocomposite Materials for Enhanced Mechanical and Antibacterial Performance in 3D Printing Applications
(2022)During the COVID-19 pandemic, wide use of 3D printing technologies has been enabled. Fused filament fabrication (FFF) is the most widely used technique in 3D printing communities worldwide for the fabrication of medical ... -
On the application of grey Taguchi method for benchmarking the dimensional accuracy of the PLA fused filament fabrication process
(2020)The dimensional accuracy of a simple benchmark specimen fabricated with fused filament fabrication (FFF) route is discussed in the present study. FFF is a low-cost 3D-printing process that builds complicated parts by ... -
Optimization of the filler concentration on fused filament fabrication 3d printed polypropylene with titanium dioxide nanocomposites
(2021)Polypropylene (PP) is an engineered thermoplastic polymer widely used in various applications. This work aims to enhance the properties of PP with the introduction of titanium dioxide (TiO2 ) nanoparticles (NPs) as ... -
Parameter effects and process modeling of FFF-TPU mechanical response
(2021)Fused Filament Fabrication (FFF) process employs thermoplastic materials in filaments form to build functional components by selectively placing extruded material progressively in thin sheets. Thermoplastic Polyurethane ... -
Parameter effects and process modelling of Polyamide 12 3D-printed parts strength and toughness
(2022)Polyamide 12 (PA12) is a high-performance polymeric material adopted by various industries for its thermal, electrical, and mechanical properties. In this work, a comprehensive examination of the impact of three 3D printing ... -
Parametric optimization of material extrusion 3D printing process: an assessment of Box-Behnken vs. full-factorial experimental approach
(2022)This work investigates the efficiency of the Box-Behnken design (BBD) in contrast with the full-factorial design (FFD) in ultimate tensile strength (UTS) of PA12 material extrusion 3D printing (ME-3DP) specimens. Three ... -
The perspective of topology optimization on 3d printed furniture prototypes sim-AM 2019
(2019)Summary. A new design starts from an idea and become a final product, during design process the evaluation stage it’s a necessity, the most useful evaluation tool is prototyping. Conceptual models are very important in ...