Моделирование полей остаточных напряжений в теплообменных трубах после волочения и раздачи

Abstract

The simulation of the process of finishing fixed plug pipe drawing and expansion of pipe in the conical mandrel cold-rolled steel pipes for steam generators for nuclear reactor fuel cladding. A comparative analysis of the accuracy of pipe sizes obtained in the production and in the simulation. Differences in values of the diameters and wall thicknesses are obtained within the limits according to the TU14-159-293-2005, indicating the correctness of the mathematical model. Distributions of residual stresses on the wall of the pipe for the case of fixed plug pipe drawing and expansion of pipe in the conical mandrel. The expediency of using expansion of pipe in the conical mandrel in the final stage of production of pipes from corrosion-resistant stainless steel.