Summary
The vendor shall fabricate a series of witness test specimens to evaluate the processing of JBK-75 and NASA HR-1 according to NASA specification using laser powder directed energy deposition (LP-DED). The witness coupon specimens shall include round bars and
harvest boxes, or otherwise specified by NASA, and be fabricated using identical machine setup, parameters, and process setup as the RS25 nozzle demonstrator. The vendor shall fabricate and provide engineering support for the LP-DED to complete
all build samples with an approximate wall thickness of 1 mm and integral channels, with representative machine and parameters as the full-scale RS25 nozzle demonstrator. See attached file.