Conclusions
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1.
Information on the nonlinearity of generating lines of cylindrical surfaces can be obtained by comparing the shapes of the diametrically opposite generating lines and the spacing between them at a given cross section to their spacing at one of the extreme cross sections, with the application at each cross section of a correction for tapering.
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2.
This arrangement raises the precision and reduces the cost of measurements, since it does not require any reference components provided with standard movements or displacements.
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3.
The instruments working according to this method do not require a precise setting parallel to the tested generating line, the axial plane of the hole, or the plane perpendicular to the axis.
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4.
The above scheme is suitable for producing portable instruments for testing the linearity of deep holes.
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Literature cited
A. N. Avdulov, Stanki i instr., No. 8 (1961).
M. A. Palei, Deviations in the Shape and Location of Surfaces [in Russian], Izd. standartov, Moscow (1965).
Author's Certificate No. 223382, Byull. izobr., No. 24 (1968).
Additional information
Translated from Izmeritel'naya Tekhnika, No. 7, pp. 38–40 July, 1969.
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Gol'man, R.A. Method for measuring deviations from linearity of the cylindrical surfaces' generating lines. Meas Tech 12, 937–939 (1969). https://doi.org/10.1007/BF00995332
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DOI: https://doi.org/10.1007/BF00995332