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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Characterization of Al-Al2O3 composite prepared using reinforced fused deposition pattern in investment casting
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Characterization of Al-Al2O3 composite prepared using reinforced fused deposition pattern in investment casting

机译：熔模铸造中增强熔融沉积模式制备的Al-Al2O3复合材料的表征

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摘要

The commercially available techniques for developing aluminium matrix composite can be broadly classified into two categories namely liquid-state and solid-state processing. In the category of liquid-state processing, modified investment casting process has ability to produce complex and near net shape geometries of aluminium matrix composite for various industrial applications. In the present research work, an effort has been made to characterize the Al-Al2O3 based composites prepared with modified investment casting process. Initially, two reinforced fused deposition modeling filaments consisting of 60% nylon 6+30% Al+10% Al2O3 (by percentage weight) and 60% nylon 6+28% Al+12% Al2O3 (by percentage weight) proportions were prepared in wire form on single screw extruder of L/D 20. After this, reinforced patterns fabricated on existing fused deposition modeling system (using newly prepared filaments) were used as master pattern in modified investment casting process. Finally prepared castings were characterized by scanning electron microscope, EDS, X-ray diffraction analysis, and optical microscopy. Tribological analysis has been made on the finally prepared castings to investigate the affect of filament proportion and fused deposition modeling system density on their wear resistance. The result of study suggests that wear resistance of the finally prepared castings was increased with increase in percentage weight of Al2O3 particle in filament and density of fused deposition modeling pattern.
机译：用于开发铝基复合材料的市售技术可大致分为两类，即液态和固态处理。在液态加工类别中，改进的熔模铸造工艺具有生产各种工业应用的复杂且接近最终形状的铝基复合材料几何形状的能力。在当前的研究工作中，已经做出努力来表征用改进的熔模铸造工艺制备的Al-Al2O3基复合材料。最初，准备了两条由60％尼龙6 + 30％Al + 10％Al2O3（按重量百分比计）和60％尼龙6 + 28％Al + 12％Al2O3（按重量百分比计）组成的增强熔融沉积成型丝。在L / D 20的单螺杆挤出机上成形模模。此后，在改进的熔模铸造工艺中，将在现有的熔融沉积建模系统（使用新制备的细丝）上制造的增强型模用作主模。通过扫描电子显微镜，EDS，X射线衍射分析和光学显微镜对最终制备的铸件进行表征。对最终准备的铸件进行了摩擦学分析，以研究细丝比例和熔凝沉积建模系统密度对其耐磨性的影响。研究结果表明，最终制备的铸件的耐磨性随着细丝中Al2O3颗粒重量百分比的增加和熔凝沉积建模图案密度的增加而增加。

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