Simulation of Non-clad Rolling Process for TiAl Alloy Sheet

Aiming at the problems of high deformation resistance, narrow hot working window and complex cladding rolling process of TiAl alloy, the finite element simulation of the hot roller rolling process without cladding for TiAl alloy plate was carried out, and the influence of different roller temperature on the sheet rolling formability was studied.The appropriate reduction range parameters were obtained by rolling simulation with different reduction.The results show that the increase of roller temperature has a significant effect on slowing down the temperature drop in the rolling process, and it is beneficial to improve the deformation uniformity of the part during rolling; when the rolling reduction is controlled between 10%and 20%, the deformation of the plate is relatively uniform, and there is no obvious strain concentration. With the increase of the roller temperature, the surface uniformity and flatness of the plate are significantly improved.