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<p>Fused Deposition Modeling (FDM) has emerged as a cost-effective and versatile additive manufacturing technique, offering significant potential for biomedical applications. This study optimizes FDM parameters to enhance the mechanical properties of carbon fiber-reinforced Polylactic Acid (PLA) fixation plates for craniomaxillofacial applications. Key parameters nozzle temperature, layer thickness, printing speed, and raster orientation were systematically analyzed to maximize mechanical performance. The fixation plate was designed using SolidWorks, with mandible dimensions derived from CT scan data. Finite Element Analysis (FEA) and tensile testing evaluated mechanical behavior, revealing an ultimate tensile strength of 45&#xa0;MPa and a Young’s modulus of 4100&#xa0;MPa. The optimal printing parameters for tensile strength were a nozzle temperature of 220&#xa0;°C, a layer thickness of 0.1&#xa0;mm, a printing speed of 60&#xa0;mm/s, and a raster orientation of 0°, while maximum elongation was achieved with a 0.3&#xa0;mm layer thickness. FEA simulations under a 62.5&#xa0;N load showed a maximum elongation of 14.035&#xa0;μm without fracture, while experimental tests confirmed an elongation at break of 46%. These results validate the mechanical reliability of carbon fiber-reinforced PLA fixation plates under significant loads, supporting their viability as a cost-effective, biocompatible, and customizable alternative for mandibular applications. This study provides a foundation for further research into optimized 3D-printed biomaterials for craniomaxillofacial surgery.</p>

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Enhancing the mechanical strength of PLA-Carbon fiber fixation plates for craniomaxillofacial surgery by optimizing 3D printing parameters

  • 期刊论文

  • 发表日期：

    2025年12月15日

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  • Nejmeddine Layeb,
  • Najoua Barhoumi,
  • László Zsidai,
  • Istvan Oldal

摘要

Fused Deposition Modeling (FDM) has emerged as a cost-effective and versatile additive manufacturing technique, offering significant potential for biomedical applications. This study optimizes FDM parameters to enhance the mechanical properties of carbon fiber-reinforced Polylactic Acid (PLA) fixation plates for craniomaxillofacial applications. Key parameters nozzle temperature, layer thickness, printing speed, and raster orientation were systematically analyzed to maximize mechanical performance. The fixation plate was designed using SolidWorks, with mandible dimensions derived from CT scan data. Finite Element Analysis (FEA) and tensile testing evaluated mechanical behavior, revealing an ultimate tensile strength of 45 MPa and a Young’s modulus of 4100 MPa. The optimal printing parameters for tensile strength were a nozzle temperature of 220 °C, a layer thickness of 0.1 mm, a printing speed of 60 mm/s, and a raster orientation of 0°, while maximum elongation was achieved with a 0.3 mm layer thickness. FEA simulations under a 62.5 N load showed a maximum elongation of 14.035 μm without fracture, while experimental tests confirmed an elongation at break of 46%. These results validate the mechanical reliability of carbon fiber-reinforced PLA fixation plates under significant loads, supporting their viability as a cost-effective, biocompatible, and customizable alternative for mandibular applications. This study provides a foundation for further research into optimized 3D-printed biomaterials for craniomaxillofacial surgery.