Measurement methodology for coordinate measuring machines - CMM - Stoco, Wanderson;de Lima, André;Torrezan, Hamilton
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Measuring shape errors on coordinate measuring machines is a process that is widely used nowadays due to the ease and speed with which the results of a given characteristic can be obtained. The aim of this work was to establish a rule for determining the minimum number of points to be touched when measuring the roundness of various parts. For the case study, measurements were taken on a part manufactured exclusively for this work, where the initial objective was achieved through calculations and comparisons. Based on the results of the measurements, a rule was defined which consists of…mehr

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Produktbeschreibung
Measuring shape errors on coordinate measuring machines is a process that is widely used nowadays due to the ease and speed with which the results of a given characteristic can be obtained. The aim of this work was to establish a rule for determining the minimum number of points to be touched when measuring the roundness of various parts. For the case study, measurements were taken on a part manufactured exclusively for this work, where the initial objective was achieved through calculations and comparisons. Based on the results of the measurements, a rule was defined which consists of touching 1 point/mm of the calculated perimeter, considering the nominal diameter specified in the drawing. The use of the rule allows for greater confidence in the results obtained, as it establishes a standard for circularity measurements in various diameters and a reduction in measurement costs, as the time spent on this process is considerably reduced (72.9% in the case studied) depending on the number of points chosen by the metrologist.
Autorenporträt
Wanderson Stoco es licenciado en Ingeniería Mecánica, tiene un MBA en Gestión de Proyectos y un máster en Ingeniería de Producción. Trabaja como Director General y Técnico en uno de los mayores laboratorios metrológicos privados de Brasil y es especialista en las áreas Dimensional y Viscosidad en la junta de evaluación externa de la Coordinación General de Acreditación de Inmetro.