Scholarlink

<p>Laser powder bed fusion (LPBF) is one of the promising techniques for fabricating prototypes with acceptable dimensional accuracy. However, little has been reported on the fabrication of rectangular waveguides (WR) by LPBF using 17-4 precipitate-hardened (PH) stainless steel (SS). This study reports the fabrication of WR (1.0&#xa0;mm × 0.3&#xa0;mm) with 17-4 PH SS by LPBF at laser power (LP) 120W, scanning speed (ScS) 1200&#xa0;mm/s, hatch distance (HD) 50&#xa0;µm, and layer thickness (LT) 30&#xa0;µm for resonance frequency (R<sub>f</sub>) applications in terahertz (THz) frequency range of the electromagnetic spectrum. The results based on scanning electron microscopy (SEM) suggest that the LPBF at the selected parameters resulted in surface roughness (Ra) and dimensional deviation (Δd) in the range of 0.43–0.52&#xa0;µm and + 0.010/− 0.030&#xa0;mm.</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

On 3D Printing of 17-4 PH SS Rectangular Waveguides with Laser Powder Bed Fusion

  • 期刊论文

  • 发表日期：

    2025年5月16日

查看全文
  • Bharat Kalia,
  • Rupinder Singh

摘要

Laser powder bed fusion (LPBF) is one of the promising techniques for fabricating prototypes with acceptable dimensional accuracy. However, little has been reported on the fabrication of rectangular waveguides (WR) by LPBF using 17-4 precipitate-hardened (PH) stainless steel (SS). This study reports the fabrication of WR (1.0 mm × 0.3 mm) with 17-4 PH SS by LPBF at laser power (LP) 120W, scanning speed (ScS) 1200 mm/s, hatch distance (HD) 50 µm, and layer thickness (LT) 30 µm for resonance frequency (Rf) applications in terahertz (THz) frequency range of the electromagnetic spectrum. The results based on scanning electron microscopy (SEM) suggest that the LPBF at the selected parameters resulted in surface roughness (Ra) and dimensional deviation (Δd) in the range of 0.43–0.52 µm and + 0.010/− 0.030 mm.