A New Method for the Measurement of the Straightness of Machine Tools and Machined Work

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Abstract
A new algorithm to measure the straightness of a machine tool and that of a machined work is proposed. This makes it possible to investigate the correlation of the two. The case of an engine lathe is used as an example. The measurement is performed by sensing the relative displacement between the objective and the tool post which carries two sensors and is fed with steps of distance. The machine tool characteristics have the most important effect on the machined work. The method can be extensively applied to measuring the cylindricity.

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