A Review on Additive Manufacturing Techniques in Medical Applications

Babu, Ramesh; ., D. Devaprakasam

doi:10.29294/ijase.5.3.2019.988-997

Cited by 8 publications

(1 citation statement)

References 56 publications

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“…The capacity of fused deposition modelling (FDM) to create intricate 3D shapes and geometries has made it a widely used 3D printing technique in numerous industrial applications worldwide. Reducing construction time and feedstock material consumption in industrial applications without compromising mechanical performance is a crucial challenge that impacts the manufactured product's functionality and cost [5]. Finding the ideal parameters to minimize build time and feedstock consumption while maintaining excellent dynamic mechanical qualities is one of the most difficult parts of the FDM process.…”

Section: Introductionmentioning

confidence: 99%

Investigations of FFF Process Parameters for Printing UHMWPE / HAP + TiO2 Filament Prepared by A Developed Small-Scale Filament Extruder for Used in Biomedical Applications

Salama,

Osman,

Rashad

et al. 2024

Preprint

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The first aim of this work is to produce a small-scale filament extruder. The produced filament should be suitable for Fused Deposition Modeling (FDM) 3D printers. The filament production is not common and only made by several manufacturers around the world. The cheapest filament extruder machine on the market is still expensive compared to the 3D printer itself. Specifically, this paper describes the design, working principle and structure of a compacted thermo-plastic extrusion machine. One of the additive manufacturing processes used for the manufacture of functional and nonfunctional prototypes is fused filament fabrication (FFF), also known as freeform filament fabrication. FFF process settings have been shown to have a considerable impact on the mechanical, thermal, surface, morphological, and tribological properties of 3D printed objects in earlier research. The second aim of this research is to investigate the FFF process parameters for printing UHMWPE / HAP + TiO2 composite filament. Four main process parameters for the FFF process were adjusted in this study: infill %, bed temperature, extruder temperature, and outer perimeter. The ultimate tensile strength of the 3D printed UHMWPE / HAP + TiO2 prototypes (according to ASTM 638 type IV) was investigated using a universal tensile tester. The study's findings imply that the ultimate tensile strength can be maximized with a 100% infill percentage, 60OC bed temperature, 210 OC extruding temperature, and 5 outer perimeters. The other goal of this study is to replace the filament extrusion head of the 3D printer with a single screw extruder for printing the composite particle directly without the filament processing. Finally use the optimized parameter to print the same prototype directly and compare the results.

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Section: Introductionmentioning

confidence: 99%