In-situ Laser ultrasound-based Rayleigh Wave Process Monitoring of DED-AM Metals

C. Bakre; T. Meyer; C. Jamieson; A. R. Nassar; E. W. Reutzel; C. J. Lissenden

doi:10.1080/09349847.2022.2120652

In-situ Laser ultrasound-based Rayleigh Wave Process Monitoring of DED-AM Metals

C. Bakre, T. Meyer, C. Jamieson, A. R. Nassar, E. W. Reutzel, C. J. Lissenden

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A laser ultrasound system is integrated into a directed energy deposition additive manufacturing (DED-AM) chamber to use Rayleigh waves for process monitoring in a noncontact layer-by-layer mode. Layers of Ti-6Al-4 V are deposited and then interrogated with ultrasonic Rayleigh waves that are sensitive to flaws and material nonuniformities. The novel integrated material processing and monitoring system is described in detail. Process parameters are intentionally altered to create flaws and anomalies to demonstrate some capabilities of the monitoring system. The generation laser actuates either broadband pulses with a cylindrical lens or narrowband wave packets with a slit mask, which are received in through-transmission mode by a laser interferometer despite the inherent surface roughness. Flaws are detected through comparison to a reference state.

Original language	English (US)
Pages (from-to)	218-242
Number of pages	25
Journal	Research in Nondestructive Evaluation
Volume	33
Issue number	4-5
DOIs	https://doi.org/10.1080/09349847.2022.2120652
State	Published - 2022

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1080/09349847.2022.2120652

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title = "In-situ Laser ultrasound-based Rayleigh Wave Process Monitoring of DED-AM Metals",

abstract = "A laser ultrasound system is integrated into a directed energy deposition additive manufacturing (DED-AM) chamber to use Rayleigh waves for process monitoring in a noncontact layer-by-layer mode. Layers of Ti-6Al-4 V are deposited and then interrogated with ultrasonic Rayleigh waves that are sensitive to flaws and material nonuniformities. The novel integrated material processing and monitoring system is described in detail. Process parameters are intentionally altered to create flaws and anomalies to demonstrate some capabilities of the monitoring system. The generation laser actuates either broadband pulses with a cylindrical lens or narrowband wave packets with a slit mask, which are received in through-transmission mode by a laser interferometer despite the inherent surface roughness. Flaws are detected through comparison to a reference state.",

author = "C. Bakre and T. Meyer and C. Jamieson and Nassar, {A. R.} and Reutzel, {E. W.} and Lissenden, {C. J.}",

note = "Funding Information: This work was supported by the NSF [1727292]; U.S. Government [W911W6-17-2-0003]. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation thereon. Publisher Copyright: {\textcopyright} 2022 American Society for Nondestructive Testing.",

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doi = "10.1080/09349847.2022.2120652",

language = "English (US)",

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AU - Bakre, C.

AU - Meyer, T.

AU - Jamieson, C.

AU - Nassar, A. R.

AU - Reutzel, E. W.

AU - Lissenden, C. J.

N1 - Funding Information: This work was supported by the NSF [1727292]; U.S. Government [W911W6-17-2-0003]. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation thereon. Publisher Copyright: © 2022 American Society for Nondestructive Testing.

PY - 2022

Y1 - 2022

N2 - A laser ultrasound system is integrated into a directed energy deposition additive manufacturing (DED-AM) chamber to use Rayleigh waves for process monitoring in a noncontact layer-by-layer mode. Layers of Ti-6Al-4 V are deposited and then interrogated with ultrasonic Rayleigh waves that are sensitive to flaws and material nonuniformities. The novel integrated material processing and monitoring system is described in detail. Process parameters are intentionally altered to create flaws and anomalies to demonstrate some capabilities of the monitoring system. The generation laser actuates either broadband pulses with a cylindrical lens or narrowband wave packets with a slit mask, which are received in through-transmission mode by a laser interferometer despite the inherent surface roughness. Flaws are detected through comparison to a reference state.

AB - A laser ultrasound system is integrated into a directed energy deposition additive manufacturing (DED-AM) chamber to use Rayleigh waves for process monitoring in a noncontact layer-by-layer mode. Layers of Ti-6Al-4 V are deposited and then interrogated with ultrasonic Rayleigh waves that are sensitive to flaws and material nonuniformities. The novel integrated material processing and monitoring system is described in detail. Process parameters are intentionally altered to create flaws and anomalies to demonstrate some capabilities of the monitoring system. The generation laser actuates either broadband pulses with a cylindrical lens or narrowband wave packets with a slit mask, which are received in through-transmission mode by a laser interferometer despite the inherent surface roughness. Flaws are detected through comparison to a reference state.

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In-situ Laser ultrasound-based Rayleigh Wave Process Monitoring of DED-AM Metals

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