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Strojarstvo : časopis za teoriju i praksu u strojarstvu, Vol. 51 No. 4, 2009.

Original scientific paper

Measurement of Fine Grain Copper Surface Texture Created by Abrasive Water Jet Cutting

Petr HLAVÁČEK ; Institute of Physics, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, Ostrava-Poruba, Czech Republic
Jan VALÍČEK ; Institute of Physics, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, Ostrava-Poruba, Czech Republic
Sergej HLOCH ; Department of Manufacturing Management, Faculty of Manufacturing Technologies of Technical University of Košice with a seat in Prešov,Prešov, Slovak Republic
Miroslav GREGER ; Department of Materials Forming, Faculty of Metallurgy and Materials Engineering, VŠB - Technical University of Ostrava,Ostrava-Poruba, Czech Republic
Josef FOLDYNA ; Institute of Geonics of the ASCR, v. v. i., Ostrava - Poruba, Czech Republic
Željko IVANDIĆ ; Mechanical Engineering Faculty, J. J. Strossmayer University of Osijek, Slavonski Brod, Croatia
Libor SITEK ; Institute of Geonics of the ASCR, v. v. i., Ostrava - Poruba, Czech Republic
Milena KUŠNEROVÁ ; Institute of Physics, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, Ostrava-Poruba, Czech Republic
Michal ZELEŃÁK ; Institute of Physics, Faculty of Mining and Geology, VŠB - Technical University of Ostrava, Ostrava-Poruba, Czech Republic

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Abstract

The paper presents results of experiments performed on copper with
commercial purity to determine the influence of material grain size on both mechanical properties and texture of surface machined by abrasive water jet. An Equal Channel Angular Extrusion technology was used for creation of fine-grain copper samples. Hardness and grain size of fine-grain copper were measured, and, subsequently, surface of prepared copper samples was machined by abrasive water jet technology. Surface irregularities produced by the abrasive water jet were evaluated by means of surface profile roughness parameter Ra. It was found that the grain size of the material represents important factor affecting the final shape of surface topography in case of abrasive water jet machining.

Keywords

Abrasive Water Jet Cutting; Copper; Equal channel angular extrusion; Fine grain size; Surface texture

Hrčak ID:

48239

URI

https://hrcak.srce.hr/48239

Publication date:

31.8.2009.

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