Desenvolvimento de equipamento e metodologia para avaliação do desempenho de rebolos aplicados na retificação tangencial em vidros

Abstract

Glass grinding is an abrasive machining process widely employed in industry, in which grinding wheel performance and wear directly influence surface quality, dimensional stability, and production efficiency. In this context, the present study aimed at the development, instrumentation, and experimental validation of the TriboGlass test bench, designed to perform controlled accelerated wear tests of grinding wheels used in tangential glass grinding. The test bench was designed and built in partnership with Diamanfer and structured to enable continuous monitoring of the Material Removal Rate (MRR) as well as the main operational process variables. In parallel, a systematic methodology for grinding wheel wear assessment was developed, including mass loss measurements, three-dimensional geometric characterization through color map scanning, cross-sectional profile evaluation, and macroscopic surface inspection. Six experimental tests were conducted, in which initial transient regimes associated with the high aggressiveness of new grinding wheels were observed, followed by the progressive stabilization of the abrasive contact. Localized variations were also recorded due to operational events such as glass replacement, grinding wheel substitution, and mechanical interferences in the carriage displacement system. The monitoring system demonstrated high sensitivity in detecting such occurrences, confirming its reliability for continuous process evaluation. The results confirm the structural stability, repeatability, and operational robustness of the TriboGlass test bench, validating it as a reliable experimental platform for systematic test matrices and future investigations related to tribological mechanisms involved in glass grinding processes.