Several methods for improving the accuracy of Rockwell hardness testing

Autor:	Ch Ch Yao, Y Y Ruan, X M Lv, H W Jiao, M L Wang, J M Ge, J L Wang
Rok vydání:	2020
Předmět:	Reverse order History Rockwell scale Materials science Mechanical engineering Indentation hardness Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 1507:102010
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/1507/10/102010
Popis:	In order to reduce the testing errors in Rockwell hardness of metal specimens and improve the accuracy of hardness testing, several methods had been tried out and examined based on GB/T 230 and other relevant inspection specifications, firstly, correct the hardness of testing pieces directly by using the hardness reference blocks to calibrate the hardness tester; secondly, correct the hardness of testing pieces by linear calculation of the errors in different hardness values to calibrate the hardness tester; for a great deal of testing pieces, check the hardness twice and the second time in a reverse order. The result shows that the applied methods are effective to further improve the accuracy of Rockwell hardness testing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f7db49bdcaf3adb9a398469ef04bcdf6 https://doi.org/10.1088/1742-6596/1507/10/102010 Zobrazit plný text záznamu