Remote ultrasonic imaging of a wire arc additive manufactured Ti-6AI-4V component using laser induced phased array

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Abstract

Additive manufacturing (AM) has been revolutionizing the manufacturing industry due to its ability to significantly reduce waste and produce components with intricate shapes. Laser Ultrasonics (LU) is a non-contact and couplant free method to generate and detect ultrasound. LU can accommodate complex component shapes; thus, it has the potential to provide a reliable in-process inspection method for AM components. In recent years the development of Laser Induced Phased Arrays (LIPAs) helped overcome the inherently low signal amplitudes of LU at the non-destructive, thermoelastic regime. In this paper, the Full Matrix Capture data acquisition method is used and a LIPA of 68 elements is synthesized in post processing. The Total Focusing Method imaging algorithm is applied for ultrasonic imaging. The technique is demonstrated on a highly scattering titanium alloy Wire Arc Additive Manufactured (WAAM) component producing high quality ultrasonic images, accurately imaging defects at depths up to 10mm below the inspection surface.
Original languageEnglish
Title of host publication2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages1-6
Number of pages6
DOIs
Publication statusPublished - 28 Jun 2021
EventIEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2021 - Glasgow - On Line event, Glasgow, United Kingdom
Duration: 17 May 202120 May 2021
https://i2mtc2021.ieee-ims.org/

Conference

ConferenceIEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2021
Abbreviated titleIEEE I2MTC 2021
Country/TerritoryUnited Kingdom
CityGlasgow
Period17/05/2120/05/21
Internet address

Keywords

  • laser ultrasonics
  • remote sensing
  • additive manufacturing
  • ultrasonic imaging

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