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RISEvaluation of the Positioning Accuracy Along Helical Paths Using a Telescoping Ballbar1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The telescoping ballbar is a versatile and easy-to-use error identification instrument for machine tools. The ballbar movement trajectory used while machining is limited to acquiring a large circular arc for positioning ...
Five-Axis Machine Tool Volumetric and Geometric Error Reduction by Indirect Geometric Calibration and Lookup Tables
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern CNC machine tools provide lookup tables to enhance the machine tool’s precision but the generation of table entries can be a demanding task. In this paper, the coefficients of the 25 cubic polynomial functions used ...