Linear friction welding for constructing and repairing rail for high speed and intercity passenger service rail : final report.

Details

• Alternative Title:
  Use of translational friction welding for constructing and repairing rail for high speed and intercity passenger service rail : final report.
• Creators:
  Shira, Seth
• Corporate Creators:
  EWI
• Corporate Contributors:
  United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Federal Railroad Administration. Office of Research, Development, and Technology
• Subject/TRT Terms:
  • High speed rail
  • Joining
  • Maintenance of way
  • Rail (Railroads)
  • Welding
  • Rail
  • rail welding
  • rail joining
  • linear friction welding
  • heat affected zone
  More +
• Publication/ Report Number:
  DOT/FRA/ORD-16/32 ; EWI Report No. 54368GTH
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology
• Abstract:
  This project developed a solid-state welding process based on linear friction welding (LFW) technology. While resistance flash welding or ; thermite techniques are tried and true methods for joining rails and performing partial rail replacement repairs, large heat inputs and residual ; stresses (associated with rail shortening) can degrade the performance of the welded area. LFW greatly reduces material loss, minimizes ; shortening of the rail assembly, and reduces weld heat input when compared to traditional rail joining methods. ; EWI teamed with APCI and LLC to develop a unique 150-ton LFW system, which uses mechanical oscillation and is relatively compact when ; compared to traditional hydraulic oscillation systems. Weld trails were completed using 136 lb rail. The experiments showed that using LFW to ; join rail was not only feasible but the technology has the potential to greatly improve the quality of continuously welded rail. Future research ; efforts should focus on obtaining optimum weld process parameters and reducing weld cycle times by adjusting pre-heat temperatures, ; oscillation forces, and durations.
• Format:
  PDF
• Funding:
  DTFR53-13-C-00041
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31371/dot_31371_DS1.pdf
• File Type:
  [PDF - 2.98 MB]
• Collection(s):
  US Transportation Collection ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha256:780abab2161b64bceec65087ee4e84cac59e17d2840a172a5734d91c15f612bb