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<p>In this study, the compressive strength and hardness of 3D-printed PLA with a 20% SiC composite structure were tested. Six essential factors were investigated, including reinforcement composition, infill density, infill pattern, layer height, build orientation, and raster angle. Compared to conventional PLA, SiC-reinforced PLA has a 43% increase in compressive strength and a 38% improvement in hardness. Among configurations, samples printed at a 45° raster angle exhibited the maximum mechanical robustness, which was attributable to optimum stress distribution and interlayer bonding. Furthermore, the highest hardness was achieved with a layer height of 0.1&#xa0;mm and a density of 100% infill, whereas higher layer heights (up to 0.3&#xa0;mm) produced the optimum compressive strength. This study emphasizes the potential of PLA-SiC composites for high-strength applications, providing a path to developing FDM-printed products with improved structural qualities.</p>

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Influence of Printing-Based Factors on the Mechanical Performance of PLA/PLA with Ceramic Reinforcement 3D-Printed Specimens

  • 期刊论文

  • 发表日期：

    2025年2月25日

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  • Vijay Kumar,
  • Nikhil Bharat,
  • Dhinakaran Veeman,
  • Murugan Vellaisamy,
  • Vikrant Singh,
  • Anuj Bansal

摘要

In this study, the compressive strength and hardness of 3D-printed PLA with a 20% SiC composite structure were tested. Six essential factors were investigated, including reinforcement composition, infill density, infill pattern, layer height, build orientation, and raster angle. Compared to conventional PLA, SiC-reinforced PLA has a 43% increase in compressive strength and a 38% improvement in hardness. Among configurations, samples printed at a 45° raster angle exhibited the maximum mechanical robustness, which was attributable to optimum stress distribution and interlayer bonding. Furthermore, the highest hardness was achieved with a layer height of 0.1 mm and a density of 100% infill, whereas higher layer heights (up to 0.3 mm) produced the optimum compressive strength. This study emphasizes the potential of PLA-SiC composites for high-strength applications, providing a path to developing FDM-printed products with improved structural qualities.