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On the Role of Bit Cutter-on-Rock Tribometry to Aid the Drilling Process for New Energy Resources

[+] Author Affiliations
Patrick S. M. Dougherty, Randyka Pudjoprawoto, C. Fred Higgs, III

Carnegie Mellon University, Pittsburgh, PA

Paper No. IJTC2011-61276, pp. 385-387; 3 pages
doi:10.1115/IJTC2011-61276
From:
  • ASME/STLE 2011 International Joint Tribology Conference
  • ASME/STLE 2011 Joint Tribology Conference
  • Los Angeles, California, USA, Oct 24–26, 2011
  • ISBN: 978-0-7918-5474-7
  • Copyright © 2011 by ASME

abstract

In this study, techniques for studying the Tribology of rock cutting are being developed using bit cutter-on-rock tribometry (BCORT). Tribo-testing is carried out on a slider pad-on-disk tribometer, retrofitted to include water-jet fabricated rock disks, a variable radius cutter assembly, and a system for the capture of in situ depth of cut. Preliminary findings for BCORT testing of O1 tool steel on Carthage marble are presented, in addition to verification of depth of cut measurements with a scanning white light optical interferometer. The interdependence of interfacial cutting friction, depth of cut rate, and disk speed are discussed in conjunction with experiments.

Copyright © 2011 by ASME

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