粉末薄板增材制造:多材料印刷的原理和能力

IF 4.2 Q2 ENGINEERING, MANUFACTURING Additive manufacturing letters Pub Date : 2023-11-27 DOI:10.1016/j.addlet.2023.100187
Wenyou Zhang , Arnoldas Sasnauskas , Asli Coban , Silvia Marola , Riccardo Casati , Shuo Yin , Ramesh Padamati Babu , Rocco Lupoi
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引用次数: 0

摘要

本文提出了一种新型的粉末薄板金属增材制造(MAPS)方法,用于一次打印多材料复合材料。MAPS采用粉末片材(即金属粉末-聚合物基柔性薄膜)作为原料。它的主要优点包括从一种材料到另一种材料的相对快速的变化,以及由于消除了粉末床而造成的材料的最小浪费。粉末片是用“溶剂铸造”法制造的。然后,它们被用于打印金属多材料复合材料的商业化金属打印机。为了证明MAPS的颠覆性概念,首次在同一制造系统中使用三种不同类型的粉末板材材料增材制造了60层三金属多材料复合材料(304 L不锈钢,In718和CoCrFeMnNi高熵合金)。实验结果表明,该方法可打印出高密度(99.80%)的复合材料。多材料复合材料的EDX和SEM观察揭示了化学成分和微观结构沿构建方向的变化。新提出的MAPS制造方法和研究结果为多材料金属零件的制造提供了新的途径。
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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Powder sheets additive manufacturing: Principles and capabilities for multi-material printing

In this work, a novel Metal Additive Manufacturing using Powder sheets (MAPS) method for printing multi-material composites in one process is proposed. MAPS employs powder sheets (i.e. metal powder-polymer matrix flexible films) as the feedstock material. Its key advantages include a relatively rapid change from one material to another and a minimum wastage of materials due to the elimination of the powder bed. The powder sheets were fabricated using a ‘solvent casting’ method. They were then employed in a commercialised metal printer for printing metal multi-material composites. To prove the disruptive concept of MAPS, a 60-layer trimetallic multi-material composite (304 L stainless steel, In718 and CoCrFeMnNi high entropy alloy) was additively manufactured using three different types of powder sheet material in the same manufacturing system for the first time. Experimental results indicate a high density (99.80 %) multi-material composites was printed by MAPS. EDX and SEM observations of the multi-material composites revealed variations of chemical composition and microstructure along the build direction. The newly proposed MAPS manufacturing method and results of this study provide insights into a new avenue for multi-material metallic parts.

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来源期刊
Additive manufacturing letters
Additive manufacturing letters Materials Science (General), Industrial and Manufacturing Engineering, Mechanics of Materials
CiteScore
3.70
自引率
0.00%
发文量
0
审稿时长
37 days
期刊最新文献
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