Second and higher-order approximations for machine accuracy calculations are necessary when the precision of the error estimation obtained on the basis of the first order approximations is poor or when first order approximations are not influencing the output accuracy of the machine. This latter case is widely present in the calculations of the functional accuracy of machines, in particular when estimating the machine tool set-up errors or when calculating the influence of machine setting displacements. In the case of machining operations, the second order approximation for the normal position error of the real surface relative to the nominal one is shown to depend on the second fundamental form of the nominal surface. As a real world application, the setting of a grinding machine for a crowned conic surface grinding operation is calculated.
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November 1997
Research Papers
Higher-Order Approximation in Accuracy Computations of Machine Tools and Robots
V. T. Portman,
V. T. Portman
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 84105, Israel
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V. G. Shuster
V. G. Shuster
ENIMS, Moscow, Russia
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V. T. Portman
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 84105, Israel
R. D. Weill
Technion, Haifa 32000, Israel
V. G. Shuster
ENIMS, Moscow, Russia
J. Manuf. Sci. Eng. Nov 1997, 119(4B): 732-742 (11 pages)
Published Online: November 1, 1997
Article history
Received:
November 1, 1994
Revised:
October 1, 1996
Online:
January 17, 2008
Citation
Portman, V. T., Weill, R. D., and Shuster, V. G. (November 1, 1997). "Higher-Order Approximation in Accuracy Computations of Machine Tools and Robots." ASME. J. Manuf. Sci. Eng. November 1997; 119(4B): 732–742. https://doi.org/10.1115/1.2836817
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