Modeling the Influence of Geometric Errors of Turning Machine for Accuracy Machinable Surface

The actual problem of modeling machine tools geometrical errors influence on machined surfaces precision is considered in the paper. The turning as an example of the treatment type is considered because it has the highest prevalence. The mathematical model of the machined surfaces accuracy is set and the model takes into account the influence of machine tools geometrical errors. The basis for the mathematical model creation was the application of the variational method development for calculating of the metal cutting machines accuracy. The mathematical model of the cylindrical and end surfaces turning precision is proposed in this work. The lathe processing accuracy is simulated at constant values of the turning machine geometrical errors for presented typical surfaces. The direction of future research of the processing accuracy simulation is identified for the values of geometric errors which are associated with the coordinate motion of the machine components. The directions for further studies of the turning accuracy at variable geometric errors of the turning machine are suggested. The work is useful for scientists involved in the study of the metalworking accuracy. (C) 2017 The Authors. Published by Elsevier Ltd.