Characterization of IN 625 recycled metal powder used for selective laser melting

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Review Pub Date : 2020-01-01 DOI:10.1051/mfreview/2020002

M. Condruz, G. Matache, A. Paraschiv

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引用次数: 6

Abstract

Additive manufacturing of high-quality materials by Selective Laser Melting depends not only on establishing appropriate process parameters, but also on the characteristics of the metal powders used and their stability over time or after recycling. The aim of the research was to characterize the IN 625 powder used over multiple manufacturing cycles with a Lasertec 30 SLM machine. In order to achieve the research's goal, virgin and recirculated powder's physical and technological characteristics were investigated. A decrease in all D-values (D10, D50, D90) of the powder size distribution was observed after multiple recirculation cycles showing a decrease of the powder dimensional range over time. Both virgin and recirculated powders are composed of mainly spherical particles, but elongated particles and satellite particles were observed as well. The dimensional evolution analysis showed a deviation from the powder ideal roundness, deviation that is more pronounced over multiple recirculation cycles. It was experimentally determined that the powders present a good flowability based on the flow rate value obtained for both virgin and recirculated powders, confirmed also by the Hausner ratio and angle of repose.

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选择性激光熔化用IN 625再生金属粉末的表征

通过选择性激光熔化增材制造高质量材料不仅取决于建立合适的工艺参数，还取决于所使用金属粉末的特性及其随时间或回收后的稳定性。该研究的目的是在Lasertec 30 SLM机器上对多个制造周期使用的IN 625粉末进行表征。为了达到研究目的，对初粉和再循环粉的物理特性和工艺特性进行了研究。在多次再循环后，观察到粉末粒度分布的所有d值(D10, D50, D90)均下降，显示粉末尺寸范围随时间的推移而减少。初粉和再循环粉主要由球形颗粒组成，但也观察到细长颗粒和卫星颗粒。尺寸演化分析表明，偏离了理想的粉末圆度，这种偏离在多次再循环中更为明显。实验结果表明，所制备的粉末具有良好的流动性，其流动速率为初磨和再循环粉末的流量值，豪斯纳比和休止角也证实了这一点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Manufacturing Review ENGINEERING, MANUFACTURING-

CiteScore

5.40

自引率

12.00%

发文量

审稿时长

8 weeks

期刊介绍： The aim of the journal is to stimulate and record an international forum for disseminating knowledge on the advances, developments and applications of manufacturing engineering, technology and applied sciences with a focus on critical reviews of developments in manufacturing and emerging trends in this field. The journal intends to establish a specific focus on reviews of developments of key core topics and on the emerging technologies concerning manufacturing engineering, technology and applied sciences, the aim of which is to provide readers with rapid and easy access to definitive and authoritative knowledge and research-backed opinions on future developments. The scope includes, but is not limited to critical reviews and outstanding original research papers on the advances, developments and applications of: Materials for advanced manufacturing (Metals, Polymers, Glass, Ceramics, Composites, Nano-materials, etc.) and recycling, Material processing methods and technology (Machining, Forming/Shaping, Casting, Powder Metallurgy, Laser technology, Joining, etc.), Additive/rapid manufacturing methods and technology, Tooling and surface-engineering technology (fabrication, coating, heat treatment, etc.), Micro-manufacturing methods and technology, Nano-manufacturing methods and technology, Advanced metrology, instrumentation, quality assurance, testing and inspection, Mechatronics for manufacturing automation, Manufacturing machinery and manufacturing systems, Process chain integration and manufacturing platforms, Sustainable manufacturing and Life-cycle analysis, Industry case studies involving applications of the state-of-the-art manufacturing methods, technology and systems. Content will include invited reviews, original research articles, and invited special topic contributions.