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<p>Metal fused filament fabrication (MFFF), a type of additive manufacturing technology, involves heating and extruding metal filament materials to build objects layer by layer. This paper investigates the influence of printing parameters, including fill flow rate, raster angle, and building direction, on the microstructural characteristics, tensile properties, and magnetic properties of Fe-3 wt.% Si prepared by MFFF. Results indicate that porosity initially decreases and then increases with increasing infill flowrate, reaching a minimum at 108%. Different raster angles exhibit anisotropy, and the print direction significantly impacts porosity and properties. Specimens printed at an infill flowrate of 108%, with a raster angle of 45°/− 45°, and in a horizontal direction exhibit the lowest porosity, the anisotropy is not obvious, with a tensile strength of 505&#xa0;MPa and yield strength of 355&#xa0;MPa, maximum permeability is 11.37 mH/m, the saturation magnetic induction intensity is 1637 mT, and the initial permeability is 0.8541 mH/m.</p>

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Effect of Printing Parameters on Microstructure and Properties of Fe-3 wt.% Si Prepared by Metal Fused Filament Fabrication

  • 期刊论文

  • 发表日期：

    2025年10月20日

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  • Qingqing Pan,
  • Bingchen He,
  • Wei Mai,
  • Chenyu Wang,
  • Chen Ou,
  • Ziyang Zhang,
  • Haiying Zhang,
  • Shuangfei Yan,
  • Jingguang Peng

摘要

Metal fused filament fabrication (MFFF), a type of additive manufacturing technology, involves heating and extruding metal filament materials to build objects layer by layer. This paper investigates the influence of printing parameters, including fill flow rate, raster angle, and building direction, on the microstructural characteristics, tensile properties, and magnetic properties of Fe-3 wt.% Si prepared by MFFF. Results indicate that porosity initially decreases and then increases with increasing infill flowrate, reaching a minimum at 108%. Different raster angles exhibit anisotropy, and the print direction significantly impacts porosity and properties. Specimens printed at an infill flowrate of 108%, with a raster angle of 45°/− 45°, and in a horizontal direction exhibit the lowest porosity, the anisotropy is not obvious, with a tensile strength of 505 MPa and yield strength of 355 MPa, maximum permeability is 11.37 mH/m, the saturation magnetic induction intensity is 1637 mT, and the initial permeability is 0.8541 mH/m.