DESIGN AND DEVELOPMENT OF BRINELL-VICKERS HARDNESS STANDARD MACHINE

摘要

A dead weight type Brinell-Vickers hardness standard machine was designed for TSE (Turkish Standards Institution) in the scope of TUBITAK (The Scientific and Technological Research Council of Turkey) Project with project number 111G068. The scope of this project is mainly based on covering the requirements of a government agency by making R&D in the related field and it is funded by the TUBITAK. A Brinell-Vickers hardness standard machine had been previously designed and established at UME (National Metrology Institute of Turkey) Hardness Laboratory as a National Standard to provide traceability for realization of indentation for Brinell and Vickers hardness scales to be used as a reference standard in Brinell and Vickers hardness reference blocks calibration. In the new TUBITAK Project it is aimed to design a new machine for the TSE with at least similar metrological performance to and more automatic hardness measurement capability than UME machine. Traceability of each component constituting Brinell and Vickers Hardness scales such as force application and realization of testing cycle to national standards is provided by direct calibration. The indentation measurement system will be provided by the TSE. To realize performance tests of the machine as a whole, hardness reference blocks calibrated by the PTB (National Metrology Institute of Germany) and UME were planned to be used. In this paper Brinell-Vickers Hardness Standard Machine designed by TUBITAK UME Hardness Laboratory for the TSE is introduced and its performance test results performed so far are interpreted.