SLEEVE EXPANSION OF BOLT HOLES IN RAILROAD RAIL. VOLUME II - PROCESS PARAMETERS AND PROCEDURES

The bolt-hole cold-expansion process has been applied to railroad rail in laboratory tests and has demonstrated a potential for the reduction of rail-bolt-hole-failure incidence. Limited field tests also have been conducted and are currently under long-term evaluation. Because the process is not common to the rail industry, this procedures manual has been prepared to assist in process implementation. The procedures manual describes the process, and provides instruction and recommendations for field application, and establishes the requirements for bolt-hole and tool-size relationships.

• Supplemental Notes:
  • See also RRIS 01 314087; Bulletin 8002. Also available in set of 3 reports PC E09, PB80-182173.
• Corporate Authors:

  Boeing Commercial Airplane Company

  P.O. Box 3707
  Seattle, WA  United States  98124

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142

  Federal Railroad Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Lindh, D V
  • Taylor, R Q
• Publication Date: 1980-2

Media Info

• Pagination: 25 p.

Subject/Index Terms

• TRT Terms: Bolted joints; Bolts; Cold working; Compressive strength; Defects; Extrusion; Fatigue strength; Fatigue tests; Field tests; Fracture mechanics; Holes; Joints; Maintenance of way; Manuals; Rail joints; Railroad rails; Railroad tracks; Work hardening
• Uncontrolled Terms: Compressive properties; Mandrels
• Old TRIS Terms: Bolt holes; Extruding
• Subject Areas: Maintenance and Preservation; Railroads;

Filing Info

• Accession Number: 00314089
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA/ORD-80/5.II Final Rpt., DOT-TSC-FRA-80-5-II
• Contract Numbers: DOT-TSC-1048-2
• Files: NTIS, TRIS, USDOT
• Created Date: Aug 5 1980 12:00AM