Abstract
After successful implementation of two hardness standardizing machines at TSE (Turkish Standards Institution) in Rockwell and Brinell-Vickers hardness scales separately, it became unavoidable to combine them in one machine with a newer design and install it in Hardness Laboratory of UME (National Metrology Institute of Republic of Turkey) within the scope of an internally funded project. In this paper the new design of the Rockwell-Brinell- Vickers hardness standard machine with deadweight force application principle and a laser interferometer optic system as depth measurement unit for Rockwell Hardness scales designed by UME Hardness Laboratory is explained.
Highlights
The activity of realization and development of primary Rockwell Hardness standard machine working in the same manner was made at Istituto Nazionale di Ricerca Metrologica (INRIM, National Metrology Institute of Italy) in the 70 years
After successful implementation of two hardness standardizing machines at TSE and with the demand and the necessity of renewing UME Hardness Standard Machines in Rockwell, Brinell and Vickers hardness scales, it became an important and unavoidable issue to combine them in one machine with a newer design and install it in Hardness Laboratory of UME within the scope of an internally funded project
In all of the three scales the hardness measurement is mainly based on the realisation of indentation and measurement of the size of the indentation such as the depth, the diameter and the diagonal length, to be used for calculation of the Rockwell, Brinell and Vickers Hardness numbers, respectively, by making use of the empirical equation eqn 1, eqn 2 and eqn
Summary
After successful implementation of two hardness standardizing machines at TSE and with the demand and the necessity of renewing UME Hardness Standard Machines in Rockwell, Brinell and Vickers hardness scales, it became an important and unavoidable issue to combine them in one machine with a newer design and install it in Hardness Laboratory of UME within the scope of an internally funded project. In this project it is aimed at making use of the final design made for the TSE, overcoming the small defects of this design, improving some parts. The CAD of the machine is given in figure 1 and drawing in figure 2
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
