L. M. Lobanov, M. O. Pashchyn, A. G. Bryzgalin, E. D. Pekar, P. S. Shlyonskyi, O. L. Mikhodui
{"title":"Durability of Railroad Car Wheelset Axles of RU1Sh Type Repaired by Explosion Welding","authors":"L. M. Lobanov, M. O. Pashchyn, A. G. Bryzgalin, E. D. Pekar, P. S. Shlyonskyi, O. L. Mikhodui","doi":"10.1007/s11223-024-00663-3","DOIUrl":null,"url":null,"abstract":"<p>The most common defect in the axles of wheelsets of railroad cars of the RU1Sh type is damage or wear of M20 threaded holes for bolts for fixing the locking strips of roller bearings. It is proposed that such threaded holes be repaired by cladding them with a restoring sleeve and then cutting a new thread. Fatigue tests of the repaired threaded holes showed that their durability practically corresponds to the basic values for new axles. The repair technology was tested on two full-scale axles mounted on a railcar bogie and subjected to route tests. The railcar with repaired axles traveled 35,000 km without damaging or wearing the restored threaded holes.</p>","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"104 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Strength of Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11223-024-00663-3","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
引用次数: 0
Abstract
The most common defect in the axles of wheelsets of railroad cars of the RU1Sh type is damage or wear of M20 threaded holes for bolts for fixing the locking strips of roller bearings. It is proposed that such threaded holes be repaired by cladding them with a restoring sleeve and then cutting a new thread. Fatigue tests of the repaired threaded holes showed that their durability practically corresponds to the basic values for new axles. The repair technology was tested on two full-scale axles mounted on a railcar bogie and subjected to route tests. The railcar with repaired axles traveled 35,000 km without damaging or wearing the restored threaded holes.
期刊介绍：
Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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