Abstract Mechanically-generated powder could potentially provide a more sustainable and lower cost feedstock alternative for the additive manufacturing industry. This research compares properties of stainless steel parts printed on a commercially available directed energy deposition system using both gas-atomized and mechanically-generated feedstock. The manufacturer's recommended power, scan speed, and powder mass flow rate settings were kept constant for all builds at 275 W, 508 mm/min, and 8.2 g/min. The surface texture, microstructure, chemical composition, and mechanical properties of printed parts were compared and found to be similar. These findings show that mechanically-generated powder is a viable alternative in directed energy deposition processing.

中文翻译：

---

使用气体雾化和机械生成的原料通过定向能量沉积制造的 316 L 不锈钢部件的比较

摘要 机械生成的粉末可能为增材制造行业提供更可持续、成本更低的原料替代品。这项研究比较了使用气体雾化和机械生成的原料在商用定向能量沉积系统上打印的不锈钢部件的特性。对于所有构建，制造商推荐的功率、扫描速度和粉末质量流量设置保持恒定，为 275 W、508 毫米/分钟和 8.2 克/分钟。比较了打印部件的表面纹理、微观结构、化学成分和机械性能，发现它们是相似的。这些发现表明，机械生成的粉末是定向能量沉积工艺的可行替代方案。