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Spectral analysis of metallic surfaces topography generated by abrasive waterjet

Kateřina Brillová ; Institute of Physical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech Republic
Miloslav Ohlídal ; Institute of Physical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech Republic
Jan Valíček ; Institute of Physics, Faculty of Mining and Geology, RMTVC, Faculty of Metallurgy and Materials Engineering, VŠB - Technical University of Ostrava, 17 Listopadu, 708 33 Ostrava – Poruba, Czech Republic
Dražan Kozak ; Mechanical Engineering Faculty in Slavonski Brod, J. J. Strossmayer University of Osijek, Trg Ivane Brlić Mažuranić 2, HR – 3500 Slavonski Brod, Croatia
Sergej Hloch ; Faculty of Manufacturing Technologies of Technical University of Košice with a seat in Prešov, Bayerova 1, 080 01 Prešov, Slovak Republic
Michal Zeleňák ; Institute of Physics, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17 Listopadu, 708 33 Ostrava – Poruba, Czech Republic
Marta Harničárová ; Institute of Physics, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17 Listopadu, 708 33 Ostrava – Poruba, Czech Republic
Petr Hlaváček ; Institute of Physics, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17 Listopadu, 708 33 Ostrava – Poruba, Czech Republic

Sažetak

Abasic study of a surface topography generated by an abrasive waterjet cutting is performed by means of the spectral analysis of these surfaces. The initial data were acquired by using an optical profilometer MicroProf FRTin the form of 2D maps of the surfaces' heights. The basic notions of the spectral analysis applied to the surface topography are presented. Limitations of the measurement procedure are considered. Distortions of the areal power spectral density are discussed. An estimation of the areal power spectral density is carried out using a periodogram method combined with the Welch´s method. A comparison of surfaces prepared by the abrasive waterjet cutting with different values of the cutting technological parameters is performed. It has been demonstrated that the areal spectral analysis of the aforementioned surfaces offers new possibilities of their topography characterization.

Ključne riječi

abrasive waterjet cutting; spectral analysis; surface topography

Hrčak ID:

79148

URI

https://hrcak.srce.hr/79148

Datum izdavanja:

29.3.2012.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.771 *