Comparative study of error determination of machine tools

Abstract The increasing demands of highly precise industrial products lead to continuous seeking for the improvements in cabapility manufacturing machines, i.e., machine tools. Machine tools include different types turning, lathe, drilling, and milling machines whatever computerized numerical control (CNC) type or manual type. cabaplity improvement requires a real understanding their productivity, accuracy, operating parameters, geometrical errors. These errors can be accurately identified through measurements with accurate measuring instruments. have error sources. angular errors, horizontal vertical straightness paralleism squarness are clear examples these In this work, comparative study determination is carried out. Two main instruments laser interferometer system autocollimator used. geometric identified, measured, analyzed.