The deformation and stress of typical additively manufactured frame components are simulated by using transient heat source algorithm,thermal cycle curve algorithm,full thermal cycle algorithm and intrinsic strain algorithm,and the prediction accuracies and calculation efficiencies of the different algorithms are analyzed.The results show that the maximum deformation position predicted by the transient heat source algorithm is the top four corners of the frame,and the stress is mainly distributed in the corners and top areas of the frame,which is in good agreement with the experimental results,and the prediction accuracies of feature point deformation and stress are 96.59% and 95.01%,respectively,and the calculation time is 326h;The prediction accuracy of the thermal cycle curve algorithm is comparable to that of the transient heat source algorithm,but the calculation time is shortened to 117h,and the predicted deformation contour and stress curve are in good agreement with the experimental results.Compared with the first two algorithms,the prediction accuracies of the full thermal cycle and intrinsic strain algorithms for feature point deformation are 85.68% and 65.86%,respectively,and the predicted deformation contour is quite different from the experimental results.The reliabilityies of the full thermal cycle and intrinsic strain algorithms are low,but their calculation times are shortened to 4h and 2h,respectively,and their efficiencies are significantly improved.
