Thermal Error Modeling and Compensation of a CNC Machining Center

Abstract:

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Error modeling and compensation is the most effective way to reduce thermal errors. In this paper, a novel approach to predict the thermal error of machine tool based on M-RAN is presented, clustering analysis is used to select the temperature variables, and then an easy and economical measurement system is applied to measure the temperature variables and thermal shift of CNC machining center. The thermally induced errors are estimated in real-time using the trained M-RAN network. The proposed approach is verified through error compensation test.

Info:

Periodical:

Advanced Materials Research (Volumes 490-495)

Edited by:

Ran Chen and Wen-Pei Sung

Pages:

1516-1520

Citation:

J. Han et al., "Thermal Error Modeling and Compensation of a CNC Machining Center", Advanced Materials Research, Vols. 490-495, pp. 1516-1520, 2012

Online since:

March 2012

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Price:

$38.00

[1] Hao, W., Zhang, H.T., Guo, Q.J., Wang, X.S. and Yang, J.G. Thermal error optimization modeling and real-time compensation on a CNC turning center. J. Mater. Process. Tech., 2008, 207(1-3), 172-179.

DOI: https://doi.org/10.1016/j.jmatprotec.2007.12.067

[2] Srivastava, A.K., Veldhuis, S.C. and Elbestawit, M.A. Modeling Geometric And Thermal Errors In A 5-axis CNC Machine-tool. Intl. J. Machine. Tools. Manu., 1995, 35(9), 1321-1337.

DOI: https://doi.org/10.1016/0890-6955(94)00048-o

[3] Ni, J. CNC machine accuracy enhancement through real-time error compensation. J. Manuf. Sci. E-T. Asme., 1997, 119(4B), 717-725.

DOI: https://doi.org/10.1115/1.2836815

[4] Bryan, J. International Status of Thermal Error Research (1990). CIRP. Ann-Manuf. Techn., 1990, 39(2), 645-656.

[5] Ramesh, R., Mannan, M.A. and Poo, A.N. Error compensation in machine tools - a review Part I: geometric, cutting-force induced and fixture-dependent errors. Intl. J. Machine. Tools. Manu., 2000, 40(9), 1235-1256.

DOI: https://doi.org/10.1016/s0890-6955(00)00009-2

[6] Li, J.W., Zhang, W.J., Yang, G.S., Tu, S.D. and Chen, X.B. Thermal-error modeling for complex physical systems: the-state-of-arts review. Int. J. Adv. Manuf. Technol., 2009, 42(1-2), 168-179.

DOI: https://doi.org/10.1007/s00170-008-1570-x

[7] Weck, M., McKeown, P., Bonse, R. and Herbst, U. Reduction and Compensation of Thermal Errors in Machine Tools. CIRP. Ann-Manuf. Techn., 1995, 44(2), 589-598.

DOI: https://doi.org/10.1016/s0007-8506(07)60506-x

[8] Lei, W.T. and Hsu, Y.Y. Error measurement of five-axis CNC machines with 3D probe-ball. J. Mater. Process. Tech., 2003, 139(1-3), 127-133.

DOI: https://doi.org/10.1016/s0924-0136(03)00193-6