Uhlmann Eckart, Polte Julian, Fasselt Janek Maria, Müller Vinzenz, Klötzer-Freese Christian, Kleba-Ehrhardt Rafael, Biegler Max, Rethmeier Michael
Fraunhofer Institute for Production Systems and Design Technology IPK, 10587 Berlin, Germany.
Machine Tools and Production Engineering, Institute for Machine Tools and Factory Management IWF, Technische Universität Berlin, 10587 Berlin, Germany.
Materials (Basel). 2024 Jul 9;17(14):3396. doi: 10.3390/ma17143396.
In the manufacturing process of ship propellers, large quantities of grinding chips are generated. These grinding chips result from the finishing of the blade surfaces after the primary casting process of the propeller. The aim of this study was to investigate and compare different preparation processes used to produce chip powders with sufficient powder quality for the additive manufacturing process of directed energy deposition. The preparation of the samples was performed through different sieving, milling and re-melting processes. For the characterization of the prepared samples, powder analysis according to relevant industry standards was carried out. It was found that the re-melting processes result in superior powder quality for additive manufacturing in terms of particle size, morphology, and flowability. For some characteristics, the powder exhibits even better properties than those of commercial powders. Furthermore, the powder properties of the milled samples demonstrate a promising potential for use in additive manufacturing.
在船舶螺旋桨的制造过程中，会产生大量磨削屑。这些磨削屑是在螺旋桨一次铸造工艺之后对叶片表面进行精加工产生的。本研究的目的是调查和比较不同的制备工艺，这些工艺用于生产具有足够粉末质量的芯片粉末，以用于定向能量沉积增材制造工艺。样品的制备通过不同的筛分、研磨和重熔工艺进行。为了表征制备的样品，根据相关行业标准进行了粉末分析。结果发现，就粒度、形态和流动性而言，重熔工艺产生的用于增材制造的粉末质量更优。对于某些特性，该粉末表现出比商业粉末更好的性能。此外，研磨样品的粉末特性显示出在增材制造中使用的良好潜力。
