Army invests $4.3 million in Auburn University additive manufacturing research
The U.S. Army has asked Auburn University to help build the future of American combat readiness.
Through a recent $4.3 million Army grant, the National Center for Additive Manufacturing Excellence (NCAME) at Auburn University will soon initiate a two-year project focused on materials, parts and process qualification, all of which are necessary for furthering the adoption and implementation of additive manufacturing in Army operations.
"Material variation is what I call the ‘Achilles heel’ of additive manufacturing," said NCAME director and project principal investigator Nima Shamsaei, Philpott-WestPoint Stevens Distinguished Professor of mechanical engineering. "It can make the qualification and certification of additively manufactured materials and parts challenging."
Even more challenging, Shamsaei said, is ensuring the consistency and transferability of process output among different additive manufacturing machines, a project goal that NCAME researchers hope to achieve not only with exhaustive mechanical testing but with AI — machine learning, specifically.
"Machine learning will help us establish structure-property relationships in a much more comprehensive way, which is somewhat transferable among platforms," said co-principal investigator and assistant mechanical engineering professor Elham Mirkoohi.
Shamsaei says Mirkoohi’s experience in AI and machine learning applications for additive manufacturing is the newest addition to NCAME’s research repertoire, which continues to draw high-profile government research grants.
"Simulation and machine learning are effective tools to understand the role of microstructure and defects on mechanical properties,” said co-principal investigator Shuai Shao, associate professor of mechanical engineering.
That understanding can help establish equivalency with less need for extensive experimentation, Shao said.
"This project not only looks into innovative ways to generate materials data, but also emphasizes on transferring the knowledge among different additive platforms by means of establishing equivalency," said co-principal investigator Masoud Mahjouri-Samani, assistant professor of electrical and computer engineering.
Aaron LaLonde, who as technical specialist for the U.S. Army DEVCOM Ground Vehicle Systems Center, helped facilitate the Army grant, believes the project will be crucial for further integrating AM into the Army’s modernization and sustainment efforts.
"NCAME,” LaLonde said, “has become one of the main key players in additive research along these lines.”
His comments echo those of Maj. Gen. Darren L. Werner, commanding general of the U.S. Army Tank-automotive and Armaments Command (TACOM), during the Army Additive Manufacturing Summit hosted by the Samuel Ginn College of Engineering last June.
"The research being conducted here at Auburn is important to the Army because additive manufacturing is going to provide two different capabilities," Werner said. "It's going to give us capability in our organic industrial base to integrate advanced manufacturing techniques, and it's also going to provide deployability of advanced manufacturing that we can potentially move into a forward location to produce and repair parts for our combat systems."
Established in 2017 through a public-private partnership between Auburn and NASA, NCAME is also one of the founding partners of the ASTM International Additive Manufacturing Center of Excellence (ASTM AM CoE), which aims to close additive manufacturing standards and workforce gaps.
The FAA also recently awarded NCAME $6 million for research toward improving commercial air travel through the use of additively manufactured metal components focused on a commonly used materials in aviation and space, titanium alloys.
Media Contact: Jeremy Henderson, firstname.lastname@example.org, 334-844-2224
BY JEREMY HENDERSON
Co-principal investigators, pictured from left to right, are professors Masoud Mahjouri-Samani, Shuai Shao, Nima Shamsaei and Elham Mirkoohi.