In-process measurement and workpiece-referred form accuracy control system (WORFAC): application to cylindrical turning using an ordinary lathe

High levels of accuracy can be achieved in precision machining through the use of highly accurate machine tool elements and under good machining and environmental conditions. To improve the accuracy and stiffness of the machine tool, we proposed a new method using in-process measurement and confirmed its effectiveness. In this work, this method is applied to cylindrical turning. The following were determined: the effectiveness of simulation for estimating the form accuracy, a new function of the corrective servo by changing the feedback gain, and the effectiveness of the new function for correcting the error. These were confirmed by both simulation and experiment.