Results 1 to 10 of about 10,422 (240)

Influence of process parameters on the forming mechanics parameters of the three-roll skew rolling forming of the railway hollow shaft with 1 : 5 [PDF]

Metalurgija, 2018
This paper presents the new technology applied in a three-roll skew rolling railway hollow shaft. The three-roll skew rolling forming simulation is conducted in railway hollow shaft with 1 : 5.
C. Xu, X. D. Shu
doaj   +5 more sources

Forming Quality Research on the Variable-Diameter Section of the Hollow Axle in Three-Roll Skew Rolling. [PDF]

Materials (Basel), 2022
The hollow axle is the key component of the high-speed train, and the realization of high-quality forming is the key to ensure the safety of train operation. In this paper, the specimen of the variable-diameter section of the hollow axle is taken as the research object, and the generation mechanism of surface spiral mark defects and the formula of ...
Xia Y, Shu X, Shi J, Wang Y, Pater Z, Wang J.   +5 more
europepmc   +3 more sources

The Mechanism of Forming Hollow Shafts with Constant Wall Thickness by Three-Roll Skew Rolling

Metals
To solve the problem of the long forming process for hollow shafts with constant wall thickness (HSCWT), a new process for forming HSCWT, namely three-roll skew rolling, has been proposed.
Song Zhang, Xuedao Shu, Jitai Wang, Zixuan Li, Haijie Xu, Yingxiang Xia, Zbigniew Pater, Janusz Tomczak, Tomasz Bulzak   +8 more
doaj   +2 more sources

Research on metal reflow law of three roll skew rolling (TRSR) hollow axle

Metalurgija, 2022
In the process of TRSR hollow axle, there is metal reflow on the surface of the rolled piece, which greatly reduces the forming accuracy of the rolled piece. To solve this problem, it is necessary to study the metal reflow law of axle body.
J. T. Wang, X. D. Shu, C. Q. Ye, Y. X. Xia, S. Zhang, S. X. Li   +5 more
doaj   +2 more sources

Formation mechanism and control of the spiral marks of three-roll skew-rolled hollow axles

Metalurgija, 2021
The spiral marks is one of the main surface quality defects of the three-roll skew rolled hollow axles. In order to eliminate the spiral marks, it is necessary to clarify the cause of the spiral marks on the surface of the rolled piece.
S. Zhang, X. D. Shu, Y. X. Xia, J. T. Wang   +3 more
doaj   +2 more sources

Study on the variation law of temperature field in three-roll skew rolling of variable diameter specimen

Metalurgija, 2022
This paper takes the simplified high-speed train hollow axle variable diameter section sample as the research object, uses Simufact.Forming simulation software for simulation, analyze the rolling piece inner variable diameter section, equal diameter ...
X. G. Chen, X. D. Shu, J. N. Shi
doaj   +2 more sources

Effect of process parameters on the surface forming accuracy of step of hollow step shaft formed by three-roll skew rolling

Metalurgija, 2021
This paper adopts a three-roll skew rolling technology with rolls that can either converge or move apart to form shafts with variable cross-section dimensions.
J. N. Shi, X. D. Shu, S. Zhang, J. T. Wang, Y. X. Xia, C. Q. Ye   +5 more
doaj   +2 more sources

Investigation of hot deformation behavior and three-roll skew rolling process for hollow stepped shaft of Al–Zn–Mg–Cu alloy

Journal of Materials Research and Technology
The increasing demand for high-strength lightweight hollow shafts in transportation highlights the need for advanced fabrication techniques. Al–Zn–Mg–Cu alloys, noted for their superior properties, are selected for three-roll skew rolling (TRSR). In TRSR,
Qingdong Zhang, Jinrong Zuo, Yingxiang Xia, Janusz Tomczak, Zbigniew Pater, Zheng Ma, Chen Yang, Xuedao Shu, Bizhou Mei, Guobiao Wang   +9 more
doaj   +2 more sources

Effect of process parameters on average grain size and microscopic uniformity of the three-roll skew rolling forming of the railway hollow shaft

Metalurgija, 2020
The average grain size and microstructure uniformity are the key factors determining the mechanical properties of the hollow shaft. In order to obtain a fine and uniform microstructure, a finite element model of threeroll skew rolling hollow shaft for ...
J. T. Wang, X. D. Shu, S. Zhang
doaj   +2 more sources

Analysis and Prospect of Precision Plastic Forming Technologies for Production of High-Speed-Train Hollow Axles

Metals, 2023
The hollow axle is the key basic component of high-speed trains. How to realize its production with short process and high-quality precision plastic forming is the frontier of current research and a major problem to be solved.
Xuedao Shu, Caoqi Ye, Jitai Wang, Yingxiang Xia, Song Zhang, Ying Wang, Haijie Xu, Yimin Deng   +7 more
doaj   +1 more source