使用搅拌摩擦挤压再生铝棒进行焊接和增材制造的可行性研究

IF 1.9 Q3 ENGINEERING, MANUFACTURING Manufacturing Letters Pub Date : 2024-11-01 DOI:10.1016/j.mfglet.2024.10.007

G.H.S.F.L. Carvalho , G. Campatelli , L. Fratini

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引用次数: 0

摘要

搅拌摩擦挤压（FSE）是一种前景广阔的工艺，能够在不熔化铝屑的情况下通过回收铝屑生产棒材。这项工作研究了如何将这些回收棒材用于 GTAW 沉积和增材制造。这种棒材适用于单珠沉积或减少使用填充材料的应用。对于增材制造多层沉积，组件的密度为 77%（孔隙率为 23%），因此必须进一步减少污染源以提高质量。研究结果表明，孔隙率会随着高度发生明显变化，靠近基底的孔隙率约为 10%，而靠近上表面的孔隙率约为 45%。

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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Feasibility study of using friction stir extruded recycled aluminum rods for welding and additive manufacturing

Friction stir extrusion (FSE) is a promising process capable of producing rods by recycling aluminum chips without melting them. This work studied the use of these recycled rods for GTAW deposition and additive manufacturing. The rods are suitable for single-bead depositions or applications with reduced use of filler material. For additive manufacturing multilayer depositions, the component presented a density of 77% (23% porosity), so pollutant sources must be further reduced to improve quality. The work shows that porosity significantly changes along the height, being about 10% close to the substrate, and about 45% next to the upper surface.

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