Abstract
One of the main requirements, which is set to executive surfaces of wheelset axles, is an accuracy of a form in transverse direction (deviation from roundness). Since methods of final processing (centerless grinding and rolling) don’t correct inaccuracies of the form, for the provision of the required accuracy of the form turn machining operations are used, including operations on the numerically controlled machines. At the application of such machines it is necessary to reveal processes that have a major impact on processing inaccuracy and to develop an approach that will decrease the impact. The paper considers features of creating a texture of the transverse profile of rotation body parts at turning. With the use of the random processes theory and methods of fractal geometry the authors studied systematic and random components of the profile. On the basis of analysis of gained results the authors show that at finishing processing vibrations of elements of the processing system have a major impact. As a result, they have formulated an approach to automatic provision of required parameters of accuracy of the form of wheelset axles at processing with the use of numerically controlled machinery.
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