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Development of Explosive Feedstock for Commercial-off-the-Shelf (COTS) 3D Printers

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-19-C-0169
Agency Tracking Number: N171-060-0197
Amount: $495,823.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N171-060
Solicitation Number: 2017.1
Solicitation Year: 2017
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-02-21
Award End Date (Contract End Date): 2020-02-21
Small Business Information
100 Cherokee Blvd, Chattanooga, TN, 37405
DUNS: 080371299
HUBZone Owned: Y
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bryan Ennis
 (615) 752-9629
Business Contact
 Brandon Ennis
Phone: (615) 823-0054
Research Institution
Traditional manufacturing methods for producing warheads, propellants, and pyrotechnic systems are timely and costly. Additive manufacturing (AM) approaches offer one path of alternative manufacturing technologies. Among various technologies, powder bed fusion (PBF) is one promising approach. Hewlett Packards Multi-Jet Fusion printers utilize a unique PBF process that presents a desirable solution to the objective of producing energetics parts by COTS technologies. Successful solids processing in a COTS powder bed fusion system requires very specific material properties, both in terms of powder handling properties as well as the associated inking/binder system. This proposal will focus specifically on nylon based PBX systems, for which HP existing multi-jet inking systems are currently optimized. Optimized processing techniques will be explored to improve material characteristics of select energetic AM feedstocks. A prototype feedstock production system will be built as a part of these efforts. Select optimal formulations will be chosen for final printing of a printed explosive on an HP Jet Fusion machine, or related development test bed. Associated performance, safety characteristics, and cost analysis of final printed parts of these developed formulations will be assessed, against existing production technologies.

* Information listed above is at the time of submission. *

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