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<p>This paper evaluates solid particle erosion (SPE) performance of samples produced via selective laser sintering (SLS) using fully recycled PA 3200 GF material, following ASTM G76-95 standards. For this purpose, six samples (30*30*3 mm<sup>3</sup>) were printed at 0°, 45°, and 90° in <i>x</i>-<i>y</i> and <i>x</i>-<i>z</i> planes with a 100-µm layer thickness. SPE tests examined erosion at distinct impact angles (30°, 45°, 60°, 90°) and pressures (1, 2, 3 bars). Results showed higher particle velocities reduced erosion resistance, where 45° <i>x</i>-<i>y</i> plane samples demonstrated superior resistance (erosion rates: 0.050, 0.100, 0.220&#xa0;mg/g under 1, 2, 3 bars, respectively). The 30° impact angle caused maximum erosion, while 90° had the least. Samples positioned horizontally in the <i>x</i>-<i>y</i> plane were most sensitive to impact angles, with 10% higher erosion sensitivity than others. The study highlights how printing direction significantly affects SPE performance in SLS.</p>

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Surface Analysis of Erosion Resistance of Recycled PA 3200 GF Powders Produced by Selective Laser Sintering

  • 期刊论文

  • 发表日期：

    2025年2月11日

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  • Musa Demirci,
  • Mehmet Bağcı,
  • Barış Samim Nesimioğlu

摘要

This paper evaluates solid particle erosion (SPE) performance of samples produced via selective laser sintering (SLS) using fully recycled PA 3200 GF material, following ASTM G76-95 standards. For this purpose, six samples (30*30*3 mm3) were printed at 0°, 45°, and 90° in x-y and x-z planes with a 100-µm layer thickness. SPE tests examined erosion at distinct impact angles (30°, 45°, 60°, 90°) and pressures (1, 2, 3 bars). Results showed higher particle velocities reduced erosion resistance, where 45° x-y plane samples demonstrated superior resistance (erosion rates: 0.050, 0.100, 0.220 mg/g under 1, 2, 3 bars, respectively). The 30° impact angle caused maximum erosion, while 90° had the least. Samples positioned horizontally in the x-y plane were most sensitive to impact angles, with 10% higher erosion sensitivity than others. The study highlights how printing direction significantly affects SPE performance in SLS.