Request for Information Questions

Question
Response
In Project Peculiar Document (PPD) 802-8436658, it
specifically lists "wire-arc DED" as an accepted AM
No. Wire arc DED and wire laser DED are not synonymous. At process. Does Team Subs and/or NAVSUP consider
this time, PPD 802-8436658 includes wire arc as the only DED "wire-laser DED" to be synonymous with "wire-arc DED"
process applicable to interchangeability PPD.
for acceptance purposes? An example would be a Meltio
Engine Blue DED machine for "wire-laser DED."
The cover sheet of PPD 802-8436658 states that
organizations invoking the PPD must have "an approved
procurement strategy submitted to Team Submarine."
How does our organization go about submitting that as a follow-on to this RFI?

No action by industry members. The approved procurement strategy is internal to the Government or prime shipbuilders that are issuing the contracts to industry with interchangeability implemented. In this case, NAVSUP has the procurement
strategy.

For material alternatives that would fall outside the PPD 802-8436658 baselines, is there an appropriate route to propose a separately scoped experimental evaluation or
qualification effort?

If it is tied to a specific part (NIIN) solicitation and the vendor believes that there is a benefit of using an alternate method or process, Request for Variance may be submitted to evaluate the proposed change. MSTIC OTA is another vehicle to
explore alternate AM methods and processes for part
production.

Is NAVSUP interested in receiving recommendations for
polymer-based Additive Manufacturing replacements
where engineering analysis demonstrates compliance
with applicable performance, qualification, and material requirements under PPD 802-8436658?

The vendor may submit a proposal with such analysis as part of the proposal for the specific NIINs.

Are respondents encouraged to identify candidate NIINs
that may be suitable for polymer substitution or redesign, assuming all required qualification, inspection, and
validation activities would be completed?

Outside the scope of this RFI. This RFI is focused on specific NIINs listed in attachment of the RFI and substitutions per PPD.

For this RFI, is the government seeking
recommendations only for direct material replacements
using metal-based Additive Manufacturing, or would
proposals that leverage additive manufacturing-enabled
redesign, part consolidation, and obsolescence mitigation