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98 Cătălin Ungureanu et al.
Deviations in shape are defined as deviations of actual surface shape of the
surface adjacent to, or deviation from the actual profile shape as the adjacent
profile. Profile is adjacent to the same profile as the profile geometry, the outer
tangential to the actual profile, and placed so that the distance between it and
the actual profile to be minimum. Maximum permissible deviation form as is
tolerance.
Traditional means of measuring the deviations in shape are instrumentality
mechanical comparators, scale value of 0.01 mm or 0.005 mm. They have the
advantages of simplicity and low cost, but recording and graphic representation
of measurement data for a production series is difficult. These disadvantages are
removed if for control is used a measuring system equipped with a displacement
transducer, data acquisition card and computer [1], [2].
2. Experimentals
Experimental facility is shown in Figure 1.
Fig.1 – Experimental facility.