Results 261 to 270 of about 447,007 (315)

An application exploration of flexible skew rolling a rail car axle

IOP Conference Series: Materials Science and Engineering, 2022
This paper presents a new method in axles manufacturing called flexible skew rolling (FSR) process and its application exploration was conducted in laboratory by producing a rail car axle.
L. Lin, B. Y. Wang, J. P. Liu, Z. H. Zheng, C. Zhu   +4 more
semanticscholar   +1 more source

Research on Wall Thickness Uniformity of Hollow Axles by Three-Roll Skew Rolling

Volume 2A: Advanced Manufacturing, 2019
Abstract The paper describes wall thickness non-uniformity of hollow axles by three-roll skew rolling and the proposed improved measure. According to the characteristics of the three-roll skew rolling process, a simulation model of hollow axles by three-roll skew rolling was established.
Song Zhang, Xuedao Shu, Chang Xu, Jitai Wang, Zixuan Li   +4 more
openaire   +1 more source

Deformation Behavior of Hollow Axles With Constant Hole Diameter by Three-Roll Skew Rolling

Volume 2A: Advanced Manufacturing, 2020
Abstract At present, hollow axles with constant hole diameter is mainly formed by turning thick-walled hollow tubes. This method of processing has low material utilization and processing efficiency. And heat treatment is required to improve the mechanical properties of hollow axles.
Chang Xu, Jitai Wang, Xuedao Shu, Song Zhang   +3 more
openaire   +1 more source

A new ductile fracture criterion for skew rolling and its application to evaluate the effect of number of rolls

, 2021
A new ductile fracture criterion for skew rolling has been proposed in this paper. The prediction of internal fractures is crucial given that internal fractures cause loss of product strength and are difficult to detect.
K. Yamane, Kazuhiro Shimoda, K. Kuroda, S. Kajikawa, T. Kuboki   +4 more
semanticscholar   +1 more source

Research on Stable Forming of Titanium Alloy Bar Using Three-Roll Skew Rolling

Advanced Materials Research, 2015
Titanium alloy with high strength, corrosion resistance, heat resistance and many other advantages has widely applications in aviation industry and the military-industrial complex. The market demand for titanium alloy increases year by year. However, the rolling technology for small size titanium rod is not mature due to its poor plasticity and ...
Guang Xing Huang, Bao Shou Sun, Wen Fei Peng, Xue Dao Shu, Wang Lu   +4 more
openaire   +1 more source

Microstructural Evolution Laws of Integrated Billet Production by Piercing and Rolling in Three-Roll Skew Rolling Process for 42CrMo Flange Nuts

Volume 2: Advanced Manufacturing
This study primarily focuses on examining the microstructural evolution during the integrated manufacturing process of 42CrMo large-scale flange nut blanks, utilizing a three-roll skew rolling and piercing technique.
Yusen Chen, Xuedao Shu, Yingxiang Xia, Zi-xuan Li, Haijie Xu, Song Zhang, Jitai Wang   +6 more
semanticscholar   +1 more source

Study on microstructural behavior of aluminum alloy thin-walled tube necking formed by three-roll skew rolling

Materials Research Proceedings
. To address the issue of incomplete formation of low necking coefficient pipe fittings in hot extrusion processes, this study adopts a novel three-roll skew rolling (TRSR) technique to investigate the microstructural recrystallization distribution ...
Y. Chen
semanticscholar   +1 more source

Microstructure Evolution and Forming Mechanism of Hollow Drive Shafts by Multi-Roll Tandem Skew Rolling

Volume 2: Advanced Manufacturing
Traditional rolling forming processes are often limited by a maximum cross-sectional reduction rate of 75%, which cannot meet the demands for heavy cross-sectional reduction rate components such as hollow drive shafts. This paper proposes an innovative
Song Zhang, Xuedao Shu, Yusen Chen, Ze-Yao Cen, Zi-xuan Li, Haijie Xu, Jitai Wang   +6 more
semanticscholar   +1 more source

Finite Element Modeling of the Skew Rolling Process

AIP Conference Proceedings, 2004
A helical skew rolling process is a continuous hot forming process that produces near net‐shape parts from tubing for hard turning or machining to the finished parts. The process can challenge forging processes in a number of applications by its high production rate and ability of forming intricate geometry.
openaire   +1 more source

Roll/yaw control of a flexible spacecraft using skewed bias momentumwheels

Journal of Guidance, Control, and Dynamics, 1984
Roll/yaw attitude control of a bias momentum stabilized flexible spacecraft is presented. The roll/yaw normal controller with a nonminimum phase control logic is shown to be very insensitive to the structural mode uncertainty. However, if this controller is switched on at the termination of a thruster-controlled stationkeeping maneuver, it cannot ...
B. WIE, J. LEHNER, C. PLESCIA
openaire   +1 more source