Scholarlink

<p>This study introduces a novel vibration-assisted fused deposition modeling (FDM) methodology to enhance the mechanical properties of 3D-printed PETG composites reinforced with short carbon fibers (CF). The experimental design employed a controlled vibration generator motor integrated on the printer bed to apply mechanical vibration during the printing process. A systematic characterization approach was implemented, first analyzing vibration behavior using FFT analysis of four distinct scenarios: standard printer operation (1.1 mm/s at 133.5 Hz) and three levels of mechanical vibration assistance (31.31-52.69 Hz, 5.14-16.25 mm/s). The study then evaluated mechanical properties through tensile, flexural, and impact testing, complemented by surface quality assessment, layer thickness distribution analysis, and microstructural evaluation using SEM. Results revealed an optimal vibration frequency of 45.15 Hz (10.58 mm/s), where ultimate tensile strength increased by 28.22% while maintaining acceptable surface quality. Impact resistance remained remarkably stable across all conditions, varying within 10% of the reference value. SEM analysis confirmed that vibration-assisted printing significantly reduced interlayer void formation without altering carbon fiber distribution.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effects of Process-Induced Vibration on Mechanical Properties of 3D-Printed PETG-CF Composites

  • 期刊论文

  • 发表日期：

    2025年8月15日

查看全文
  • Abraheem Hadeeyah,
  • Slim Naifar,
  • Hana Jamhour,
  • Fouzi Alhadar,
  • Neila Khabou Masmoudi

摘要

This study introduces a novel vibration-assisted fused deposition modeling (FDM) methodology to enhance the mechanical properties of 3D-printed PETG composites reinforced with short carbon fibers (CF). The experimental design employed a controlled vibration generator motor integrated on the printer bed to apply mechanical vibration during the printing process. A systematic characterization approach was implemented, first analyzing vibration behavior using FFT analysis of four distinct scenarios: standard printer operation (1.1 mm/s at 133.5 Hz) and three levels of mechanical vibration assistance (31.31-52.69 Hz, 5.14-16.25 mm/s). The study then evaluated mechanical properties through tensile, flexural, and impact testing, complemented by surface quality assessment, layer thickness distribution analysis, and microstructural evaluation using SEM. Results revealed an optimal vibration frequency of 45.15 Hz (10.58 mm/s), where ultimate tensile strength increased by 28.22% while maintaining acceptable surface quality. Impact resistance remained remarkably stable across all conditions, varying within 10% of the reference value. SEM analysis confirmed that vibration-assisted printing significantly reduced interlayer void formation without altering carbon fiber distribution.