| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing and Cellular/Lattice Structures: Designs, Realization and Applications
|
| Presentation Title |
Permeable Additive Manufacturing (PermiAM) for Rocketry |
| Author(s) |
Adam J. Polizzi, Kimberly Devore, Matthew Kuhns, Jeremy Iten |
| On-Site Speaker (Planned) |
Adam J. Polizzi |
| Abstract Scope |
PermiAM is a patent pending method for creating variable-porosity materials in situ with fully dense parts. Teams of experts from Masten Space Systems and Elementum 3D have been developing the technology via NASA SBIRs in L-PBF machines, along with internal funding, to eliminate the need for secondary processing of the permeable bodies for propulsion equipment. In addition, PermiAM is completely material agnostic.
Applied to rocket injection componentry, PermiAM enables transpiration cooling and has been described as ‘game changing’ by industry experts. Not only has PermiAM promoted a 60% cost savings on transpiration injectors but can also be manufactured 92% faster.
During a 65 second hot fire test and a combustion temperature on 6100°F combustion the temperature, the PermiAM injector face remained at 380°F. Additionally, PermiAM has accumulated a total of more than 800 seconds of hot fire testing across multiple materials in aluminum, nickel, and copper material sets. |