Durability of Railroad Car Wheelset Axles of RU1Sh Type Repaired by Explosion Welding

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Strength of Materials Pub Date : 2024-09-14 DOI:10.1007/s11223-024-00663-3
L. M. Lobanov, M. O. Pashchyn, A. G. Bryzgalin, E. D. Pekar, P. S. Shlyonskyi, O. L. Mikhodui
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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.

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通过爆炸焊接修复的 RU1Sh 型铁路车辆轮轴的耐久性
RU1Sh 型铁路车辆轮轴最常见的缺陷是用于固定滚子轴承锁紧条的螺栓的 M20 螺纹孔损坏或磨损。建议通过包覆修复套管,然后切割新螺纹来修复此类螺纹孔。对修复后的螺纹孔进行的疲劳测试表明,其耐久性实际上与新车轴的基本值一致。修复技术在安装在轨道车转向架上的两个全尺寸车轴上进行了测试,并接受了路线测试。使用修复过的车轴的轨道车行驶了 35,000 公里,修复过的螺纹孔没有损坏或磨损。
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来源期刊
Strength of Materials
Strength of Materials MATERIALS SCIENCE, CHARACTERIZATION & TESTING-
CiteScore
1.20
自引率
14.30%
发文量
89
审稿时长
6-12 weeks
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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