Results 1 to 10 of about 28,415 (248)

Textures of Non-Oriented Electrical Steel Sheets Produced by Skew Cold Rolling and Annealing

open access: yesMetals, 2021
In order to investigate the effect of cold rolling deformation mode and initial texture on the final textures of non-oriented electrical steels, a special rolling technique, i.e., skew rolling, was utilized to cold reduce steels.
Youliang He, Erik J. Hilinski
doaj   +1 more source

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

open access: yesMetals, 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   +7 more
doaj   +1 more source

Problems of forming stepped axles and shafts in a 3-roller skew rolling mill

open access: yesJournal of Materials Research and Technology, 2020
The paper focuses on a new method for forming axisymmetric parts of considerable length in a CNC skew rolling mill. The laboratory rolling mill was used to conduct rolling tests for car axles (in scale 1:5). Although produced parts are free from internal
Zbigniew Pater   +2 more
doaj   +1 more source

Short-Flow Rolling Process and Heat Treatment of Seamless Titanium Alloy Tube

open access: yesMetals, 2023
In view of the material characteristics of titanium alloys, such as their capability to quickly cool down and their poor machinability, in this study, we combined a new production mode for seamless tube rolling (tandem skew rolling, TSR) with titanium ...
Chen Chen   +3 more
doaj   +1 more source

Effect of Roller Axial Position and Thickness on a Twisted Angle in the Twist Rolling of Aluminum Alloy 1050 Sheet Metal

open access: yesMetals, 2023
This paper proposes a new rolling method called “twist rolling” that can continuously form a twisted shape by using taper rollers. The twisted shape of metal sheets is widely used in industrial products such as turbine blades and propellers. Such a shape
Avanish Kumar   +3 more
doaj   +1 more source

Microstructure Study on Large-Sized Ti–6Al–4V Bar Three-High Skew Rolling Based on Cellular Automaton Model

open access: yesMetals, 2022
The large diameter titanium alloy bars are usually manufactured by forging, which leads to large metal loss, high cost, low efficiency and limited product specifications.
Jianhua Hu   +4 more
doaj   +1 more source

Rotary compression as a new calibration test for prediction of a critical damage value

open access: yesJournal of Materials Research and Technology, 2020
The article presents the problem of ductile fracture of metals and metal alloys formed in hot working conditions. The basic damage criteria used in modelling fracture as well as calibrating tests used to determine the critical damage values were ...
Zbigniew Pater   +2 more
doaj   +1 more source

Numerical Simulation of Two-roller Rotary Rolling Piercing of a New Heat-resistant Alloy SP2215 Seamless Pipe [PDF]

open access: yesTeshugang
In the process of rotary rolling and piercing for austenitic heat-resistant alloy, the improper selection of process parameters may result in phenomena such as coarse grain and mixed crystal in the pipe billet, or even fracture during processing, thereby
Liang Kai, Yao Zhihao, Xie Xishan, Wang Hongying, Cheng Jian, Dai Weixing, Dong Jianxin
doaj   +3 more sources

The energy–momentum method for the stability of non-holonomic systems [PDF]

open access: yes, 1997
In this paper we analyze the stability of relative equilibria of nonholonomic systems (that is, mechanical systems with nonintegrable constraints such as rolling constraints).
Bloch, Anthony M.   +2 more
core   +5 more sources

A COMPUTER SYSTEM FOR ACQUISITION AND ANALYSIS OF MEASUREMENT DATA FOR A SKEW ROLLING MILL IN MANUFACTURING STEEL BALLS

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2020
The article presents the concept and capabilities of a computer system for analysing measurement data for a skew rolling mill used to produce steel balls.
Marcin Buczaj, Andrzej Sumorek
doaj   +1 more source

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