Selective Laser Melting of Rhenium for Propulsion Applications

Quadrus Advanced Manufacturing, LLC (QAM) is pleased to present this proposal to demonstrate a mature additive manufacturing (AM) process for rhenium using selective laser melting (SLM, also known as laser powder bed fusion, L-PBF).Ā As we will show, we will use our proven capability in the SLM of a variety of refractory materials as the basis for demonstrating rhenium component manufacture of the very highest quality. We believe QAM is uniquely qualified to execute this project, since our experience as rocket propulsion technologists pre-dates our experience with AM by more than two decades.Ā As a result, we understand the material, the manufacturing process and the product end-use. Ā The foundation of our Phase II work plan meets all of the requirements of this Direct to Phase II opportunity, which includes An experienced, world-class supply chain for Re powder feedstock An AM build volume of 9cm x 9cm x 8 cm easily extended to 25cm x 25cm x 28cm A proven capability in the AM of refractory materials, including W-5Re (TMelt = 3,350░C), W-24Re (TMelt = 3,050░C), and C103 Nb (TMelt = 2,350░C) A proven capability in heat treatment to provide stress relief and densification A proven capability in refractory metal machining, including Re