Additive Manufacturing of Telescope Mirrors, Phase I

Metadata Updated: February 28, 2019

This Phase 1 SBIR is to demonstrate feasibility of using selective laser melting (SLM) to produce a 3-meter symmetrical radius of curvature (ROC) isogrid mirror substrate which will significantly reduce traditional mechanical machining of the mirror surface before and after nickel plating. The technique in accomplishing this is by fabricating the lens facesheet as the top most layers in the melting process. This way, our melting technique in producing the best possible finish on the lens surface SLM can provide. If this is successful, then performing a electro-polishing of the substrate before nickel plating the lens facesheet, single point diamond turning (SPDT) is the only time it is necessary. By developing the SLM techniques having a facesheet ROC with minimum variation, and having an optimized facesheet thickness designed for additive manufacturing, this substrate can be scaled to support flight hardware designs for UVOIR mirrors.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_89813
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 06cb7c48-11d4-4933-95bf-3472962a4ffb
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2016-12-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 44a178d45423cb279d1010438e4067798130c514
Source Schema Version 1.1

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