Three-dimensional finite element analysis of multi-stage hot forming of railway wheels |
| |
Authors: | Tapas Gangopadhyay Raj Kumar Ohdar Dilip Kumar Pratihar Indrajit Basak |
| |
Affiliation: | 1. Central Mechanical Engineering Research Institute, Durgapur, 713209, India 2. National Institute of Foundry & Forge Technology, Hatia, Ranchi, 834003, India 3. Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur, 721302, India 4. Department of Mechanical Engineering, National Institute of Technology, Durgapur, 713209, India
|
| |
Abstract: | Three-dimensional finite element analyses has been carried out using DEFORM 3D software on multi-stage hot forming of railway wheels involving the processes of upsetting, forging, and punching of wheels. Thermal analysis related to heating the blank in furnace and all intermediate heat transfer stages between deforming operations have been conducted. Rigid viscoplastic finite element method has been utilized for coupled thermo-mechanical analysis of the processes. Modeling of punching the wheel bore has been carried out using Cockcroft and Latham fracture criterion. Evolution of thermo-mechanical parameters at selected points within the workpiece has been studied in detail. The method of simulating the effects of various process parameters has been explained using relevant mathematical relations. This study shows that design, optimization, and analysis of process perturbations for multi-stage railway wheel manufacturing process can be done efficiently in three-dimensional finite element simulations instead of conventional time and cost intensive trials. It might be necessary to use the results of finite element analysis in shop-floor to enhance productivity and reduce wheel rejection. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|