Review of Powder Bed Fusion Additive Manufacturing for Metals

被引:72
|
作者
Ladani, Leila [1 ]
Sadeghilaridjani, Maryam [1 ]
机构
[1] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA
关键词
powder bed fusion additive manufacturing; laser melting; electron beam melting; nickel alloys; titanium alloys; bulk metallic glasses; high entropy alloys; copper alloys; aluminum alloys; steel; HIGH-ENTROPY ALLOY; 316L STAINLESS-STEEL; BEAM MELTING EBM; MELTED INCONEL 718; CYCLE FATIGUE BEHAVIOR; CRACK GROWTH-BEHAVIOR; MECHANICAL-PROPERTIES; HEAT-TREATMENT; HIGH-STRENGTH; AL-MG;
D O I
10.3390/met11091391
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Additive manufacturing (AM) as a disruptive technology has received much attention in recent years. In practice, however, much effort is focused on the AM of polymers. It is comparatively more expensive and more challenging to additively manufacture metallic parts due to their high temperature, the cost of producing powders, and capital outlays for metal additive manufacturing equipment. The main technology currently used by numerous companies in the aerospace and biomedical sectors to fabricate metallic parts is powder bed technology, in which either electron or laser beams are used to melt and fuse the powder particles line by line to make a three-dimensional part. Since this technology is new and also sought by manufacturers, many scientific questions have arisen that need to be answered. This manuscript gives an introduction to the technology and common materials and applications. Furthermore, the microstructure and quality of parts made using powder bed technology for several materials that are commonly fabricated using this technology are reviewed and the effects of several process parameters investigated in the literature are examined. New advances in fabricating highly conductive metals such as copper and aluminum are discussed and potential for future improvements is explored.
引用
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页数:58
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