The Production and Subsequent Selective Laser Melting of AlSi12 Powder

Abstract

The paper studies the atomization of Al-based alloy AlSi12 in gas jet. Air was used as a spraying gas. The size and shape of powder particles were studied by using scanning electron microscopy and optical granulomorphometer. The obtained powder was used in selective laser melting.

Influence of Powder Characteristics on Processability of AlSi12 Alloy Fabricated by Selective Laser Melting

“…Powder B was produced by Ashinskiy Metzavod PAO (Asha, Russia) (“Metal powders”) and Powder C was produced homemade by authors using URM-001 powder atomizer in South-Ural State University (Chelyabinsk, Russia) [ 41 ]. A detailed information about the production of powder C can be found elsewhere [ 42 ]. Each powder batch was characterized in terms of particle size distribution, morphology, chemical composition, flowability and apparent density.…”

Alumina Reinforced EP648 Metal Matrix Composite Produced by Selective Laser Melting Powder Bed Fusion Additive Technology

“…Selective laser melting (SLM) is powder bed fusion layer-by-layer additive manufacturing technology that allows to manufacture complex shape functional parts from metal powder [1]. At the present time SLM machines allow to success manufacture complex shape functional parts from various pure metals and its alloys: titanium [2,3], steels [4,5], nickel [6,7], cobalt [8], aluminum [9,10]. Some problems there are in SLM of metals with extremely high thermal conductivity like copper, silver and gold [11][12][13], and with metals with high melting temperature like molybdenum and tungsten [14,15].…”

Influence of Powder Layer Thickness on Microstructure of Selective Laser Melted TiAl6V4

“…SLM offers a great potential to manufacture functional metal parts with extremely complex shape and internal cooling channels, such as surgical and dental implants [2][3][4], fuel injectors and combustion chambers for aerospace engines [5][6][7] and other [8,9]. Modern SLM machines allow to produce functional parts from various metals and its alloys (from low melting point aluminum-base alloys [10] to molybdenum [11] and tungsten [12]), various metal-matrix composites [13][14][15]. There are some successes in SLM of ceramics [16,17].…”