The Stress and Strain Analysis in the Broadening Stage of Multi-Wedge Synchrostep Rolling Railway Axle by Cross-Wedge Rolling

Abstract

The broadening stage is the main stage in Multi-wedge Synchrostep Rolling railway axle by Cross-wedge Rolling. Based on the rotated theory of Multi-wedge Rolling, through using Ansys/Ls-Dyna FEM software, This paper provides a systematic analysis of the stress-strain in the broadening stage of Multi-wedge Synchrostep Rolling railway axle by Cross-wedge Rolling. Through this study, it is obtained the stress-strain distribution and evolution on Multi-wedge Synchrostep Rolling railway axle by Cross-wedge Rolling. These research conclusions can provide scientific basis for Multi-wedge Synchrostep Rolling railway axle by Cross-wedge Rolling.

Mechanism Research on Multi-Wedge Synchrostep Rolling Asymmetric Shaft-Parts by Cross-Wedge Rolling

“…1, because of very great size in the axial direction, cannot be rolled by pairs CWR, segment-symmetrical wedge CWR and pre-wedge CWR, and single wedge symmetrical force CWR will result in more disadvantages such as the roller surface is too long and the equipment is too large. If MS-CWR technology are adopted it can notably save roller surface and decrease equipment weight, simultaneously, it also can increase production efficiency, save material and debase the cost [10]. About MS-CWR, the start manner of multi-wedge has mainly three kinds [11]: ahead, synchronization and retarded.…”

Feasibility Study on Forming Hollow Axle with Multi-Wedge Synchrostep by Cross Wedge Rolling

“…Multi-wedge synchrostep rolling by cross wedge rolling is a process of plastic deformed that multi-dies roll rolled part from radial direction and axial direction at the same time [1], the theory of multi-wedge rolling shows in Fig. 1 .…”

The Analysis of the Stress and Strain in Skew Rolling

“…Decades of different kinds of products-ranging from balls ,rollers ,short stepped shafts to anchor rods with thread(see Fig. 2)-are currently being manufactured by skew rolling process in China [1,2]. Research towards vital skew rolling process is of great importance to skew rolling manufacturers and design engineers.…”