CALIBRATION OF INSTRUMENTS FOR HARDNESS TESTING BY USE OF A STANDARD |
|---|
| Joachim Frühauf, Eva Gärtner, Konrad Herrmann, Febo Menelao, Dieter Schwenk, Thomas Chudoba, Hans-Peter Vollmar |
- Abstract:
- As a standard for the calibration of force and depth scales of hardness testing instruments a system of silicon springs is described. The standard shows a linear force-deflection characteristic F = k · f up to a stop point (typical: Fst = 420 mN; fst = 22 µm). For the calibration of stiffness and stop point of the standard the characteristic should be measured using a spherical indenter. In view of the practical application for the assessment of instruments also Vickers indenters can be used. In this case indentations are produced. The resulting wear can be minimized by reducing the maximum force and using only the measured stiffness k for a quick assessment.
- Keywords:
- Hardness Testing, Calibration, Si-Standard
- Download:
- IMEKO-TC5-2007-026.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC5
- Event name:
- Symposium on Recent Advancements in the Theory and Practice of Hardness Measurement
- Title:
- 10th HARDMEKO Conference: HARDMEKO 2007
- Place:
- Tsukuba, JAPAN
- Time:
- 19 November 2007 - 21 November 2007