| Popis: |
3D printing of thermoplastic polymers is one of the common techniques for fabricating structural and non-structural components for engineering, aerospace, construction and household applications. But hitherto very less work has been performed on 3D printing of secondary recycled acrylonitrile butadiene styrene reinforced with industrial wastes such as bakelite powder, Fe powder and wood dust. So, in this research work flexural specimens were printed through fused deposition modelling technique form composite filaments prepared in-house (secondary recycled ABS 90% by weight reinforced with equal percentage of bakelite powder, Fe powder and wood dust) as per Taguchi’s L9 orthogonal array. The influence of three FDM parameters (raster angle, infill density and infill speed) on the flexural strength of the fabricated specimen was also investigated and the results were analyzed using optical photomicrographs and scanning electron microscopy characterization. Optimal parametric settings for obtaining maximum peak strength (flexural) were 0° raster angle, 20 mm/sec printing speed and 80% infill density. |
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