Estudio metrológico del durómetro (Gnehm Swiss Rock) del laboratorio de metalografía Facultad Tecnológica.

Abstract

As a higher education institution, the Universidad Distrital Francisco José de Caldas possesses specialized equipment for observing phenomena related to various branches of engineering. Each measuring device is located in its respective laboratory, which has the necessary implements and spaces for the corresponding practices. Therefore, if the established guidelines for handling the equipment are followed, both students and other institution personnel can manage it properly and obtain acceptable results. This project will focus on the metallography laboratory of the Faculty of Technology, where we will find the Hardness Tester (GNEHM Swiss Rock). It is necessary to understand that, operationally, a piece of equipment can function moderately well. Unfortunately, with the phenomenon of globalization, operational standards must be more rigorous to benefit quality and metrology. In this regard, it is advisable to subject measuring equipment to performance evaluations known as calibrations and/or verifications. These performance evaluations aim to assess the equipment and its state of precision. The study of this project is based on a Metrological Analysis of the Hardness Tester (GNEHM Swiss Rock). The proposed analysis aims to evaluate the condition of the measuring equipment. The following guidelines must be followed: the standard practices for hardness evaluation in different materials, especially evaluating the repeatability of the equipment; uncertainty analyses, linearity tests, among others, will also be conducted. This is just for the measurement exercise, but due to the nature of metrology, more than one measurement should be taken, including evaluations of range, bias, hysteresis, etc. Even the order of measurements, as a normative guideline, requires characterizing the equipment and being informed about the measurement methods and characteristics of the test specimens for the different hardness tests. All these processes aim to ensure that the reliability of the hardness tester is not affected by poor procedures. In this case, calibration will not be employed, but the same principle will be followed.