April 23-26, 2018 | Fort Worth Convention Center | Fort Worth, TX | Exhibits April 24-26

Creation of an Affordable Aerospace Grade Aluminum Alloy via Computational Alloy Design Methods

Materials I, II, III

Intermediate May 10, 2017 3:15 pm - 3:40 pm

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Alex McCloskey, Research and Development Engineer, Northrop Grumman
Eric Barnes, Technical Fellow, Northrop Grumman

The current state-of-the-art for Additive Manufacturing (AM) aluminum alloys and processes is confined to selective laser melt (SLM) aluminum-silicon based systems with strength levels too low for many aerospace applications. In response to this need Northrop Grumman Aerospace Systems (NGAS) employed computational alloy design methods to pursue a low cost alloy/process combination with competitive strength and ductility relative to 6xxx and 7xxx series wrought aluminum. This pursuit resulted in a technology solution that is 48% stronger (TYS) than AM AlSi10Mg, stronger than 6061-T6, and approaching the strength of 7075-T73. In addition NGAS has begun the process of further optimizing the AM process and post process heat treatment for this alloy. NGAS is developing design properties, creating business cases, and performing component demonstrations for this technology.

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Alex McCloskey

Research and Development Engineer
Northrop Grumman

Alex McCloskey is an applied research engineer in the area of alloy de

Eric Barnes

Technical Fellow
Northrop Grumman

Eric Barnes is currently a Northrop Grumman Fellow responsible for the Aerospace System