The Department of Defense, specifically the United States Air Force, is seeking proposals for the enhancement of Additive Manufactured Foundry-grade Sand Molds under the SBIR program. The primary objective is to advance the use of Lost-PLA technology to achieve aerospace-grade aluminum castings, enabling Tinker Air Force Base to deploy investment casting capabilities within a scalable workflow. This initiative is critical for improving manufacturing processes and reducing costs associated with casting operations. The solicitation is currently closed, with applications due by June 12, 2024, and further details can be found on the DOD SBIR/STTR website.