Improved quality truck castings : final report.

Details

• Creators:
  Carter, Daniel ; Gonzales, Kari ; Jones, Kerry ; Sammon, Devin
• Corporate Creators:
  Transportation Technology Center, Inc.
• 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:
  • Bolsters
  • Car trucks (Railroads)
  • Derailments
  • Failure
  • Fracture properties
  • Mechanical tests
  • Railroad cars
  • Steel castings
  • Bolster
  • side frame
  More +
• Publication/ Report Number:
  DOT/FRA/ORD-16/18
• 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:
  A review of the car repair billing database shows that many bolsters and side frames are removed from service each year due to ; cracking or breaking. Derailment-related costs due to bolster and side frame failures total approximately $9 million per year. ; Although the number of removals may not be large in comparison to other components, the cost associated with these removals ; and failures is significant. To reduce the number of truck casting failures. Transportation Technology Center, Inc. (TTCI) ; investigated the material properties, material standards, foundry processes, nondestructive test procedures (NDT) and component ; design for truck castings, as well as reasons for removing castings from service, to determine possible areas for improvement. ; Mechanical testing was conducted on castings from seven foundries. After this testing, bolsters from three of these foundries were ; made with alternate chemistries and heat treatments for mechanical testing, and then TTCI determined whether these changes ; improved the toughness of the steel.
• Format:
  PDF
• Funding:
  DTFR53-00-C-00012 FRA Task Order 254
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31361/dot_31361_DS1.pdf
• File Type:
  [PDF - 2.55 MB]
• Collection(s):
  Federal Railroad Administration ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:f9adbadcb5dbc63b078210d1fc40d25fe32c54c19fb55dd7873024c4278a50dd