Manufacturing Technology 2019, 19(5):886-890 | DOI: 10.21062/ujep/389.2019/a/1213-2489/MT/19/5/886

Accuracy of Portable Hardness Testers

Alan Vaško1, Ján Sovík1, Zuzana Sedliačková2
1 Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
2 Department of Applied Mathematics, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia

Hardness tests enable to determine one of the main mechanical properties of the material, namely hardness. For hardness testing, it is possible to use either conventional desk hardness testers or the currently increasingly used portable hardness testers. The paper is focused on determination of the accuracy and reliability of static (desk) and dynamic (portable) hardness testers. The paper deals with the measurement of hardness of calibration hardness plates by 4 different methods (Brinell, Vickers, Rockwell and Leeb) with using 5 different hardness testers (3 desk and 2 portable). The hardness values measured by the different hardness testers were compared to the reference hardness listed in the calibration hardness plates and consequently, the accuracy of these measurements was evaluated. The aim of the work has been to determine the accuracy and reliability of portable hardness testers in comparison with desk hardness testers.

Keywords: Hardness, Brinell, Vickers, Rockwell, Leeb
Grants and funding:

Scientific Grant Agency of Ministry of Education, Science, Research and Sport of Slovak Republic, grant project VEGA No. 1/0398/19.
Culture and Educational Grant Agency of Ministry of Education, Science, Research and Sport of Slovak Republic, grant projects KEGA No. 049ŽU-4/2017 and 012ŽU-4/2019.
Operational Program Research and Innovation: Research and development activities of the University of Zilina in the Industry of 21st century in the field of materials and nanotechnologies, No. 313011T426. The project is co-funding by the European Regional Development Fund.

Published: October 1, 2019  Show citation

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Vaško A, Sovík J, Sedliačková Z. Accuracy of Portable Hardness Testers. Manufacturing Technology. 2019;19(5):886-890. doi: 10.21062/ujep/389.2019/a/1213-2489/MT/19/5/886.
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