Observatorio de I+D+i UPM

Descripción
A comparison of the results obtained applying the traditional methodology to measure the Brinell hardness value with different optical equipment has been performed. The results show that the measurements on Brinell hardness indentation give neither satisfactory results, nor reproducibility nor precision with respect to certificated values. The fundamental reason is the lack of definition on the indentation edge, where the Brinell indentation diameter should be measured. This causes a high dispersion of the diameters measured with different instruments, operators or measurement parameters. In this work, we propose an alternative measurement methodology using confocal microscopy, which allows to determine a unique indentation edge. This methodology is of high interest for certification of hardness reference blocks because the results are independent of the measuring instrument and the operator.
Internacional	Si
JCR del ISI	No
Título de la revista	Procedia Manufacturing
ISSN	2351-9789
Factor de impacto JCR
Información de impacto
Volumen	13 (2017)
DOI	10.1016/j.promfg.2017.09.089
Número de revista	13
Desde la página	550
Hasta la página	557
Mes	SIN MES
Ranking	SCImago Journal Rank (SJR): 0.105

Esta actividad pertenece a memorias de investigación

• Autor: Jesus Caja Garcia (UPM)
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• Autor: Piera Maresca (UPM)
• Autor: Emilio Gomez Garcia (UPM)

• Creador: Grupo de Investigación: Metrología Dimensional