0498343 - ÚT 2019 RIV CZ eng C - Conference Paper (international conference)
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]
R&D Projects: GA ČR(CZ) GA17-22615S
Institutional support: RVO:61388998
Keywords : 3D printing of metals * nonlinear ultrasonics * porosity measurement
OECD category: 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).

Permanent Link: http://hdl.handle.net/11104/0291644