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Title: Laser Ultrasound Spectroscopy Scanning for 3D Printed Parts

Abstract

One of the challenges of additive manufacturing is quality control due to the possibility of unseen flaws in the final product. The current methods of inspection are lacking in detail, too slow for practical use, or unable to validate internal structure. This report examines the use of laser ultrasound spectroscopy in layer by layer scans of 3D printed parts as they are created. The result is fast and detailed quality control. An additional advantage of this method is the ability to cancel a print as soon as a defect is detected, therefore saving materials and time. This technique, though simple in concept, has been a challenge to implement. I discuss tweaking the 3D printer configuration, and finding the optimal settings for laser scanning small parts made of ABS plastic, as well as the limits of how small of a detail the laser can detect. These settings include the frequency of the ultrasonic transducer, the speed of the laser, and the distance from the laser to the part.

Authors:
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1374286
Report Number(s):
LA-UR-17-26976
DOE Contract Number:
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Brennan, Guendalyn Kendra. Laser Ultrasound Spectroscopy Scanning for 3D Printed Parts. United States: N. p., 2017. Web. doi:10.2172/1374286.
Brennan, Guendalyn Kendra. Laser Ultrasound Spectroscopy Scanning for 3D Printed Parts. United States. doi:10.2172/1374286.
Brennan, Guendalyn Kendra. 2017. "Laser Ultrasound Spectroscopy Scanning for 3D Printed Parts". United States. doi:10.2172/1374286. https://www.osti.gov/servlets/purl/1374286.
@article{osti_1374286,
title = {Laser Ultrasound Spectroscopy Scanning for 3D Printed Parts},
author = {Brennan, Guendalyn Kendra},
abstractNote = {One of the challenges of additive manufacturing is quality control due to the possibility of unseen flaws in the final product. The current methods of inspection are lacking in detail, too slow for practical use, or unable to validate internal structure. This report examines the use of laser ultrasound spectroscopy in layer by layer scans of 3D printed parts as they are created. The result is fast and detailed quality control. An additional advantage of this method is the ability to cancel a print as soon as a defect is detected, therefore saving materials and time. This technique, though simple in concept, has been a challenge to implement. I discuss tweaking the 3D printer configuration, and finding the optimal settings for laser scanning small parts made of ABS plastic, as well as the limits of how small of a detail the laser can detect. These settings include the frequency of the ultrasonic transducer, the speed of the laser, and the distance from the laser to the part.},
doi = {10.2172/1374286},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 8
}

Technical Report:

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