In-Line Inspection of Additive Manufactured Parts Using Laser Ultrasonics, Phase I

Metadata Updated: July 17, 2020

Additive manufacturing (AM) is an increasingly popular technique for rapid, low-cost production of parts directly from a CAD file. AM is especially appealing for complex parts that would be costly or impossible to fabricate by machining or casting. It is also attractive for fabrication of prototype parts.

At present there are no reliable, cost-effective process control techniques to minimize defect production and for qualification of finished parts. Studies at NASA, NIST, and other agencies have noted this gap and urged increased efforts to develop techniques for part qualification. In this project we will demonstrate the feasibility of applying laser ultrasonic testing to inspect each deposited layer in real time as it is formed. This in-line inspection qualifies the part layer-by-layer, ensuring finished parts that require no further testing. In Phase I we will first develop a database of the types and sizes of important defects in NASA-specific components. We will then optimize the beam configuration for sensitivity to these defects, and also develop signal processing algorithms to enhance defect detection and collect size information. In Phase II a prototype in-line inspection system will be developed and tested.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_93557
Maintainer
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 7e974b52-10c2-4345-90be-226dfb57404f
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2017-12-01
Homepage URL https://techport.nasa.gov/view/93557
Data Last Modified 2020-01-29
Program Code 026:027
Source Datajson Identifier True
Source Hash fa3f639828da12de4a696a70ae6d344f7efc9865
Source Schema Version 1.1

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