Lubricating Capacity of a Medium during Abrasive Wear of Drilling Steel,

Abstract

The friction coefficient of steel during drilling in various lubricating media decreased in the order water, drilling muds, air, and oil drilling fluids. The properties of the boundary liquid layer had a decisive effect on the lubricating capacity when drilling fluids were used, but in air drilling the properties of the metal surface film were dominant. Media with lubricating properties increased the drilling rate, resistance of tools, and efficiency. Surfactant and specific additives improved the properties of the boundary liquid layers and metal surface films. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 30, 1971
Accession Number
AD0739220

Entities

People

  • A. I. Spivak
  • G. V. Konesev
  • M. R. Mavlyutov

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Abrasives
  • Additives (Chemicals)
  • Boundaries
  • Coefficients
  • Drilling
  • Efficiency
  • Friction
  • Resistance

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Manufacturing Engineering.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).