Numerical evaluation of geometrical errors of three-axes CNC machine tool due to cutting forces—case: milling

Abstract

The quality of the workpiece produced by CNC machine tool is primarily due to the degree of precision and stability of the machines themselves. In general, the quality measures the degree of conformity of a part with predefined dimensions and geometric specifications. However, a simple measure does not identify the contribution of each source of error affecting the room. It is therefore important to analyze the technological aspects of machine tools, numerical control and the influence of the process. In order to give the issues of precision machine tools a conceptual dimension, it is preferable to classify the affecting factors. Errors can be classified according to the working phase during which the sources that generate them are active. During the preparation phase, errors can be associated with setting procedures, errors in the programming, and machining programs converted into machine language. During the machining phase, the sources of error which affect the accuracy are much more varied. Their effects can be considered as the combination of the individual contributions of all the elements constituting the system machine tool cutter, as well as the interaction of this system with the process. The purpose of this article is to present a study on the evaluation of the geometrical errors of a machine tool EMCO PC MILL 155 that exists within our laboratory, which are due to cut efforts.