An Approach to Optimize Size Parameters of Forging by Combining Hot-Processing Map and FEM |
| |
Authors: | H E Hu X Y Wang L Deng |
| |
Affiliation: | 1. Department of Chemistry and Materials, Naval University of Engineering, Wuhan, 430033, China 2. State Key Lab of Material Processing and Die&Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
|
| |
Abstract: | The size parameters of 6061 aluminum alloy rib-web forging were optimized by using hot-processing map and finite element method (FEM) based on high-temperature compression data. The results show that the stress level of the alloy can be represented by a Zener-Holloman parameter in a hyperbolic sine-type equation with the hot deformation activation energy of 343.7 kJ/mol. Dynamic recovery and dynamic recrystallization concurrently preceded during high-temperature deformation of the alloy. Optimal hot-processing parameters for the alloy corresponding to the peak value of 0.42 are 753 K and 0.001 s?1. The instability domain occurs at deformation temperature lower than 653 K. FEM is an available method to validate hot-processing map in actual manufacture by analyzing the effect of corner radius, rib width, and web thickness on workability of rib-web forging of the alloy. Size parameters of die forgings can be optimized conveniently by combining hot-processing map and FEM. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|