The results of galling experiments are strongly dependent on the method used and vary from test machine to test machine. However, by a well-developed test method and testing machine, one can obtain reliable and repeatable results. The primary objective of this research is to develop a new test method and machine for evaluating galling resistance in OCTG (oil country tubular goods) connections. Through the application of basic principles of statistical design of experiments, the galling resistance in OCTG threaded connections has been investigated. For estimating the nominal failure stress, two statistical methods, namely, up-and-down and frequency distribution, have been applied and compared. Galling resistance, one of the most important design factors of OCTG connections, has been studied and discussed.
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February 1992
This article was originally published in
Journal of Engineering for Industry
Research Papers
Experimental Investigation of Galling Resistance in OCTG Connections
A. Ertas,
A. Ertas
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
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H. J. Carper,
H. J. Carper
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
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O. Cuvalci,
O. Cuvalci
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
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S. Ekwaro-Osire,
S. Ekwaro-Osire
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
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W. R. Blackstone
W. R. Blackstone
Lockheed Engineering and Sciences Company, La Cruces, NM
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A. Ertas
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
H. J. Carper
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
O. Cuvalci
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
S. Ekwaro-Osire
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021
W. R. Blackstone
Lockheed Engineering and Sciences Company, La Cruces, NM
J. Eng. Ind. Feb 1992, 114(1): 100-104
Published Online: February 1, 1992
Article history
Received:
November 1, 1989
Revised:
March 1, 1991
Online:
April 8, 2008
Citation
Ertas, A., Carper, H. J., Cuvalci, O., Ekwaro-Osire, S., and Blackstone, W. R. (February 1, 1992). "Experimental Investigation of Galling Resistance in OCTG Connections." ASME. J. Eng. Ind. February 1992; 114(1): 100–104. https://doi.org/10.1115/1.2899745
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