LEEB HARDNESS-CALIBRATION-MACHINE

Dieter Schwenk

Abstract

For the calibration of hardness reference blocks according to the German standard DIN 50156 -hardness test according Leeb -MPA NRW has realized a new concept of hardness reference standard machine. A laser interferometer is used for the continuous measurement of distance and time. In a post process the speed of the indenter will be evaluated from the measurement data. The conception of the machine, measurement capabilities and the effects of variation of test parameters are reported in the following paper.

Keywords

Leeb-hardness, drop impact test, laser interferometer

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IMEKO-TC5-2010-024.pdf

DOI

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IMEKO TC

TC5 - Hardness Measurement

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