Testing large workpieces using portable hardness testing devices has a fair side of advantages, but it does raise a question about accuracy. Read to find more. A research paper submitted by Polish and Slovakian researchers focused on the technical aspect of portable hardness testers, mainly determining their accuracy and reliability. As the paper deals with measuring hardness by 4 diverse methods of Brinell, Vickers, Rockwell, and Leeb, it uses 2 kinds of hardness testers – static & dynamic (portable). The research covers table hardness testers and digital portable hardness tester for proper comparisons. Following the methodology of research, results and discussions, and conclusion, it won’t be hard to disseminate the fact that portable hardness testers have still a long way to fulfill accuracy qualifications, chiefly due to measuring methods and requirements of converting the measured Leeb hardness to other scales. So, shall it be used or not? Even manufacturers hav...
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