Nonlinear ultrasonic porosimetry of 3D printed metallic parts

0498343 - ÚT 2019 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Převorovský, Zdeněk - Krofta, Josef - Kober, Jan - Kirschner, A.
Nonlinear ultrasonic porosimetry of 3D printed metallic parts.
Defektoskopie 2018 NDE for Safety. Brno: Brno University of Technology, 2018 - (Pazdera, L.; Mazal, P.; Turek, P.), s. 79-87. ISBN 978-80-214-5684-6.
[International Conference and NDT Exhibition Defektoskopie 2018 NDE for Safety 2018 /48./. Praha (CZ), 06.11.2018-08.11.2018]
Grant CEP: GA ČR(CZ) GA17-22615S
Institucionální podpora: RVO:61388998
Klíčová slova: 3D printing of metals * nonlinear ultrasonics * porosity measurement
Obor OECD: Applied mechanics

Additive manufacturing process optimization requires a feedback from nondestructive testing (NDT) and evaluation. In this contribution are discussed NDT results obtained by nonlinear elastic wave spectroscopy methods to classify presence of defects in Ti-6Al-4V prismatic samples fabricated by electron beam printer. Quantitative calibration of porosity was realized by metallography. The best porosity classification results were obtained by nonlinear wave modulation spectroscopy with chirp excitation and by ESAM (Excitation Symmetry Analysis).
Trvalý link: http://hdl.handle.net/11104/0291644