№1 (48), 2019. TOOL ENGINEERING, METROLOGY AND INFORMATION-MEASURING INSTRUMENTS AND SYSTEMS

B.N. Markov, V.I. Teleshevsky, V.A. Sokolov

Construction of deviations characteristics from roundness, determining the accuracy of cylindrical compounds

The article describes roundness errors measurements for fitting round parts based on ISO 12181-1:2011 standard. The article considers algorithms and programs for reference circles calculations using MathCad software. A quasi-circle term is introduced — aninclosing or inscribing curve characterizing the fit.

 

Keywords: roundness, tolerance, fit, shaft, hole, precision.

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