Numerical simulation of thermodynamics coupling in hot forming process of elliptical head used in power station

本资料包含pdf文件1个，下载需要1积分

To reduce the time of getting an ideal elliptical heat used in power station through repairing and testing a die repeatedly according to experience, finite element software Deform-3D was used to research the simulation of deformation-heat transfer coupling in hot forming process of elliptical head with the size of Ф1200 mm ×100 mm. The variations of stress, stain, temperature, thickness and strain rate in forming process were gotten, and the forming quality was evaluated from roundness, thinning rate and thermal contraction. The results show that the maximum thinning rate of the elliptical head is 7.31% ,it is close to the orthographic place ; and the inner diameter obtained from simulation is 1200. 6 - 1202. 977 ram, it is in the range of inner diameter tolerance required; all the data fit well with the practical dimension data of processing head.