IJPEM

Comparison of Tactile and Optical Measurement Methods Using Precise Geometrical Shape

Marek Vozar/ Slovak University of Technology in Bratislava

Keywords: Measurement Optical measurement Touch measurement Accuracy Cutting tools
The presented article deals with the comparison of accuracy different measuring methods, in order to determine the achievable level of measurement accuracy as well as to evaluate deviations that may occur when measuring the identical component on different machine. The measured component was cemented carbide rod of 10 mm diameter manufactured by the company Ceratizit. Two measurement systems with various degrees of reported accuracy were utilized—coordinate measurement machine Zeiss Prismo Ultra and optical microscope Zoller Genius 3 s. Data obtained by the measurement were evaluated and compared. The experiment was carried out so that appropriate measuring system can be chosen when measuring cutting tools based on the various specific requirements depending on the currently conducted experiments, reducing the time it takes to have the tools measured as well as the load on measuring machines operators. Another reason for the experiment was to determine whether used measurement systems are capable of measuring micro-geometry of the cutting tools, which turned out to be not possible due to the technical limitations of both methods. Comparing the values of deviations between the measuring devices used in the experiment it can be concluded that the accuracy of optical measurement method is sufficient for use in other ongoing experiments when measuring basic tool geometry.