Mapping of errors the geometric specification of the machining center

Abstract

Variability in the product manufacturing process is unavoidable, we can only minimize its impact on acceptable value. In the engineering industry, high demands are placed on the dimensional and geometric accuracy of products. These metrological characteristics are influenced by many factors e.g.: choice of suitable production technology, machine tool, used cutting tool, environment, and others. The greatest influence on the geometric shape of the product is the machine tool itself (errors of the kinematics, its own construction, and components of the machining centre). The submitted article deals with the application of a direct and indirect method for detecting defects of the machine tool. It points to the fact that it is necessary to check the characteristics of the machine by both methods. When applying the indirect method, errors are manifested, which are squeezed into the actual surface of the product under certain production conditions. We may use this information to track the trend of machine tool errors.