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In-situ metal matrix composites development for additive manufacturing: a perspective

Essien U. A., Vaudreuil S.

Journal of Achievements in Materials and Manufacturing Engineering

2022

Vol. 111, nr 2

78--85

Purpose: This paper presents an overview on some ceramic materials capable of achieving in-situ reinforcements in Al/Al-alloy metal matrix composites (MMCs) during laser processing. It also presents perspective on further exploitation of the in-situ reinforcement capabilities for high quality MMCs feedstock material development. Design/methodology/approach: The approach utilized in writing this paper encompasses the review of relevant literature on additive manufacturing (AM) of MMCs. Findings: It is widely accepted that the in-situ reinforcement approach has proven to be more advantageous than the ex-situ approach. Though there are still some challenges like the formation of detremental phases and the evaporation of low melting temperature elements, the in-situ reinforcement approach can be used to tailor design composite powder feedstock materials for the AM of MMCs. The preprocessing or tailor-designing in-situ metal matrix composite powder before laser melting into desired components holds more promises for metal additive manufacturing. Practical implications: The need for the development of MMCs powder feedstock that can be directly fabricated using suitable AM technique without prior powder processing like blending or mechanical alloying has not yet been addressed Therefore, having a pre-processed in-situ reinforced MMC feedstock powder can encourage easy fabrication of MMC and other advantages of AM technologies powder recycling. Originality/value: The idea explained in this article is relevant to materials development for AM processing of metal matrix composite. This paper has pointed out future trends for MMCs materials feedstock powder development and new ideas for further exploitation of MMCs and AM technologies. The advantages of tailor-designing composite powders other than merely mixing them has been emphasized.

Zastosowanie techniki SLM na wykrojniki blach

Benedyk Marcin, Król Mariusz, Tański Tomasz

Stal, Metale & Nowe Technologie

2021

nr 11-12

16--22

Jedną z technik druku 3D, dzięki której można wytworzyć metodą przyrostową niemalże lite elementy metalowe, jest metoda laserowego przetapiania proszków SLM (ang. selective laser melting). Jest to nowoczesna technologia pozwalająca na tworzenie elementów, które znajdują zastosowanie w obszarach począwszy od przemysłu motoryzacyjnego i lotniczego, a skończywszy na przemyśle stomatologicznym czy medycznym [1-3].

One of the 3D printing technologies thanks to which almost solid metal elements can be produced using the additive method is SLM (selective laser melting). This is a modern technology that enables creating elements which are used in areas ranging from the automotive and aviation industry to the dental or medical industry [1-3].