Review on common calibration and measurement practises for measuring gears on CMMs

Maria-Pia Sammatini-Malberg, Leonardo De Chiffre

    Research output: Book/ReportReportResearchpeer-review

    Abstract

    The present report reviews the state of the art of metrology of cylindrical gears with involute toothing. The subjects covered in the state of the art range from gear measuring instruments to gear standards, together with a general introduction to international and national standards and guidelines, in order to give an overview of the improvements achieved in the last 25 years. Special attention is paid to gear metrology on coordinate measuring machines (CMMs). Calibration chains for the major gear geometrical quantities developed by Physikalisch-Technische Bundesanstalt (PTB) as well as their recent results obtained in gear standards measurement uncertainties are presented. This review also describes the design and development of a new type of master gear: the Gauge Block Gear (GBG).The GBG was developed for the performance verification of CMMs, for the specific task of pitch and chordal tooth thickness measurement. Its main characteristic is the replacement of the teeth with gauge blocks, in order to achieve direct traceability of the chordal tooth thickness
    Original languageEnglish
    PublisherIPL
    Number of pages50
    Publication statusPublished - 1999

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