Results 11 to 20 of about 10,422 (240)

Microstructure evolution of three-roll skew-rolling formed hollow axles with uniform wall thickness.

open access: yesThe International Journal of Advanced Manufacturing Technology, 2022
Abstract The uniform thickness hollow axle is one of the lightest weight axles in the high-speed rail industry. It can effectively reduce unsprung mass and further improve the train speed. Therefore, due to its importance and significance, it is crucial to research and develop the uniform thickness hollow axle. To understand the microstructural
Chang Shu   +7 more
openaire   +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

Research on variation law of workpiece temperature of three roll skew rolling hollow axle

open access: yesIOP Conference Series: Materials Science and Engineering, 2022
To explore the variation law of workpiece temperature in the process of three roll skew rolling (TRSR) hollow axle, the process of TRSR hollow axle is tested and simulated in this paper. Firstly, the working principle of TRSR hollow axle is described; Then the blank and rolling process parameters are selected according to the actual performance of TRSR
J T Wang   +4 more
openaire   +1 more source

Simulation and experiment of reduction of equal-diameter hollow shafts with three-roll skew rolling

open access: yesProcedia Manufacturing, 2020
Abstract In order to verify that the three-roll skew rolling process can reduce the diameter of equal-diameter hollow shafts, first, the working principle of the three-roll skew rolling of the equal-diameter hollow shaft is explained; then the billet and rolling process parameters are selected according to the actual three-roll skew rolling mill ...
Song Zhang   +4 more
openaire   +1 more source

Theoretical And Experimental Analysis Of Aluminium Bars Rolling Process In Three-High Skew Rolling Mill

open access: yesArchives of Metallurgy and Materials, 2015
Technology of round bars rolling on a three-high skew rolling mills allows rolling of standard materials such as steel and aluminum, as well as new materials, especially hard deformable materials.
Stefanik A.   +3 more
doaj   +1 more source

Feasibility study on thinning and thickening of thin-walled pipe fittings in three-roll skew rolling

open access: yesProcedia Manufacturing, 2020
Abstract Aiming at the existing problems, e.g. cracking, many forming passes, difficult control of dimensional accuracy, in thin-walled pipe fittings hot extrusion forming process, a innovative forming on thinning and thickening of thin-walled pipe fittings by three-roll skew rolling with a pair of molds is being proposed in this paper.
Yingxiang Xia   +5 more
openaire   +1 more source

Fano 3-folds in codimension 4, Tom and Jerry, Part I [PDF]

open access: yes, 2011
This work is part of the Graded Ring Database project [GRDB], and is a sequel to [Altinok's 1998 PhD thesis] and [Altinok, Brown and Reid, Fano 3-folds, K3 surfaces and graded rings, in SISTAG (Singapore, 2001), Contemp. Math. 314, 2002, pp. 25-53].
Altınok   +9 more
core   +1 more source

Testing Multi-Field Inflation: A Geometric Approach [PDF]

open access: yes, 2012
We develop an approach for linking the power spectra, bispectrum, and trispectrum to the geometric and kinematical features of multifield inflationary Lagrangians.
A. A. Starobinsky   +7 more
core   +2 more sources

A New Method of Manufacturing Small-Diameter Bars and Tubes from Hardly Deformable Steels in Skew Rolling [PDF]

open access: yesMetalurgija, 2007
The paper discusses the process of hot rolling on skew rolling mills and compares it with other methods of manufacturing rods (shape milling) and tubes (pilger rolling).
Gałkin, A. M.   +2 more
doaj  

Mechanism of integrated forming of shape and inner hole of hollow axle

open access: yesMetalurgija, 2022
The paper introduces a new technology of the integrated forming of shape and inner hole of hollow axle. Firstly, the design of the process is described. Secondly, the range of feed angle of two sets of rolls and the principle to be followed are explained.
C. Q. Ye   +4 more
doaj  

Home - About - Disclaimer - Privacy