Lanyun Li

TL;DR: In this paper, a method to control the guide rolls by the hydraulic adjustment mechanism is explored and realized in 3D-FE ring rolling model for the first time, and the key technologies, such as the parameter design of the linkage assembly and critical pressure of the hydraulic ram, are also proposed.

TL;DR: In this paper, the deformation properties of the cold DGBR rolling process from some initially rectangular blanks are investigated by using 3D-FE numerical simulation to reveal its deforming rules.

TL;DR: In this article, the interactive effects of the two forming parameters on the T-shaped cold ring rolling process are explored through 3D-FEM in Abaqus software, and the results show that the study objects (roll force, growth rate of diameter, degree of inhomogeneous deformation, filling capability of groove, average side spread and fishtail coefficient) are almost invariable if the two parameters are increased or decreased proportionally.

TL;DR: In this paper, the springback behavior of a single-layered non-homogeneous bellows was investigated in a finite element (FE) analysis, and the results showed that after springback, the U-shaped convolution profile is changed to tongue shape accompanied by a 2.5~38.5% axial elongation and a 0.1~0.6% radial shrinkage.

TL;DR: In this paper, the deformation characteristics of thin-walled bellows with different specifications and its sensitivity to forming parameters in hydroforming (mainly referring to internal pressure) were analyzed using finite element simulations.