Laser ultrasonic testing of titanium alloy parts inside the directed energy deposition additive manufacturing chamber (Conference Presentation)

Chaitanya Bakre; Gerald T. Boddie; Cory D. Jamieson; Abdalla R. Nassar; Edward W. Reutzel; Cliff J. Lissenden

doi:10.1117/12.2559129

24 April 2020 Laser ultrasonic testing of titanium alloy parts inside the directed energy deposition additive manufacturing chamber (Conference Presentation)

Chaitanya Bakre, Gerald T. Boddie, Cory D. Jamieson, Abdalla R. Nassar, Edward W. Reutzel, Cliff J. Lissenden

Author Affiliations +

Proceedings Volume 11381, Health Monitoring of Structural and Biological Systems XIV; 1138105 (2020) https://doi.org/10.1117/12.2559129
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only

Abstract

Additive manufacturing (AM) requires a new paradigm for quality assurance testing. A nondestructive test setup has been integrated into an AM chamber. A pulsed laser generates Rayleigh waves that are then received by a laser interferometer. Two levels of interrogation are investigated; detection of defects using linear ultrasonic methods and tracking changes in microstructure using nonlinear ultrasonic methods. One of the challenges in AM chambers is surface roughness, which affects both light collection for reception as well as the Rayleigh wave propagation characteristics. This paper describes the laser ultrasonic system, its integration into an AM chamber, and some sample results.

Conference Presentation

Citation Download Citation

Chaitanya Bakre, Gerald T. Boddie, Cory D. Jamieson, Abdalla R. Nassar, Edward W. Reutzel, and Cliff J. Lissenden "Laser ultrasonic testing of titanium alloy parts inside the directed energy deposition additive manufacturing chamber (Conference Presentation)", Proc. SPIE 11381, Health Monitoring of Structural and Biological Systems XIV, 1138105 (24 April 2020); https://doi.org/10.1117/12.2559129

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