Retrospective reaming of bolt holes in new Austenitic Manganese Steel rails for the cold expansion process for MTRC - Hong Kong (RR-STR-95-060)

Trials have been carried out to assess the performance of a counterboring system and modified carbide reamers in the retrospective machining of existing bolt holes to the tolerance required for the Cold Expansion (CX) process in new Austenitic Manganese Steel (AMS) rails. Both system were found to be successful,...