Study on Deformation of Titanium Alloy Part by Stress Relief Annealing
ABAQUS software was used to study on the deformation of a frame part of titanium alloy during stress relief annealing.For the numerical simulation,the influence of residual stress caused by front-end processes such as forging and machining was considered,and a simulation analysis of multi-process and multi-physical field coupling based on real manufacturing was realized.Also,the influence of assembly relationship between the part and tooling was studied.The results show that,considering the initial residual stress,the freely placed parts creep during heat treatment with the release and redistribution of the internal stress,the deformation trend is consistent with the actual measurement results,and the deformation value is in the same order of magnitude.In addition,using tooling of titanium alloy with conformal blocks is beneficial to reduce the adverse effect of tooling on the part and effectively maintain the shape of the part,so as to control the deformation of the part during heat treatment.
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