(1) It is shown that the method of explosion cladding allows depositing of repair coating in the damaged threaded opening M20 of the axle journal of wheelsets for RU1-Sh type cars. At that the cracks in the journal metal and zone of joining with repair coating as well as shrinkage shortenings and reduction of diameter of location of the axle journal for roller bearing are absent. (2) It was determined that minimum values of fatigue life of the axles with threaded openings repaired by explosion welding method made 122,000 loading cycles that only 4 % lower of the base value for the new axles. (3) Two full-scale axles with repaired threaded openings M20 were route tested and showed no damage or unallowable wear after running of 23 thou km according to their condition in October 2011. (4) The developed technology has a perspective to be used at car-building enterprises of 'Ukrzalisnytsya'.
Repair explosion cladding of threaded channel of car axles
The Paton Welding Journal ; 2 ; 36-39
2012
4 Seiten, 9 Bilder, 1 Tabelle
Article (Journal)
English