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A New Approach for the Effectiveness of Coaxiality Tolerance Verification

G. Kaisarlis, C. Provatidis, M. Sfantsikopoulos


One of the most complex tasks that are carried out by Coordinate Measuring Machines (CMM) is the verification of coaxial deviation of cylindrical features. The paper addresses the difficulties met in the evaluation of coaxiality tolerances. A set of criteria, based on current GD&T standards and industrial engineering practice, are introduced in order to safeguard the effectiveness of the coaxiality tolerance verification by CMMs. The proposed criteria, along with the novel CMM measurement strategies for the practical verification of coaxial deviation that are presented, can be easily implemented in CAD/ CMM environments. The functionality of the approach is illustrated through an application example


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