Abstract
Multi material printing in single functional prototype of newly developed composite matrix is a topic of discussion in area of fused deposition modeling (FDM). Multi material based product may give edge over single material based product by introducing several required properties in product by collaborating different material in single component. This work reports the wear and morphological characteristics of 3D printed pins of poly(lactic)acid (PLA) based multi-material component (reinforced with polyvinyl chloride (PVC) (25 wt%), wood powder (5 wt%), and magnetite powder (Fe3O4) (20 wt%) in three different feedstock filament individually). The wear analysis of multi material pins suggest that least wear (300 mm) was observed for S.No. 7 which were printed with infill density of 100%, infill angle of 45° and infill speed of 90 mm/min whereas maximum wear (605 mm) was observed for sample printed with experimental condition of S.No. 3 (Infill density: 60%, Infill angle: 90° and infill speed: 90 mm/min). The samples printed with low density have resulted into porous structure due to which wear rate for them was observed to be high. From photomicrographic investigation it can be concluded that surface characteristics of 3D printed sample has important role in wear characteristics of material as it was observed that the 3D printed pin with S.No. 7 (as per Table 2) has shown least roughness profile (16.41 nm) whereas sample prepared with conditions of S.No. 3 (as per Table 2) have maximum surface roughness (29.50 nm).
Published Version
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