Ceramic Bearing Technology Program, Volume 2. Apendices.

Abstract

This project deals with the development of advanced manufacturing technologies for finishing silicon nitride balls and rollers for bearing applications. Magnetic field assisted polishing was used for finishing the balls and magnetic abrasive finishing for finishing rollers. By applying low levels of controlled force (1 N/ball or less) the damage on the finished surface is expected to be minimal. Also chemo-mechanical polishing was used to minimize the brittle fracture. Using these techniques the polishing time was reduced from some 10-20 weeks to about 20 hours. The finish obtained was about 5-10 nm and the sphericity in the range of 0.5 -1 micrometer. In this report various technical papers dealing with various aspects of the finishing of silicon nitride balls and rollers prepared on this contract are included as appendices. They include the technology of polishing, optimum polishing conditions, the thermal model of the spot temperature generated in polishing, and finally the material removal mechanisms in polishing.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1995
Accession Number
ADA316562

Entities

People

  • R. Komanduri

Organizations

  • Oklahoma State University–Stillwater

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemical Synthesis
  • Chemistry
  • Crystal Structure
  • Friction
  • Magnetic Fields
  • Magnetic Materials
  • Manufacturing
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Working
  • Mechanics
  • Technical Ceramics

Readers

  • Business Analytics
  • Powder metallurgy of Titanium alloys.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).