Simulation analysis of shaping process of high frequency longitudinal electric resistance welded pipe

Key words:  welding  steel pipe  stress distribution  simulation

Abstract:

Under the conditions of given mechanical properties of the pipe material, size of the pipe blank, configuration of the rollers, the deformation of the pipe blank in shaping was simulated and the stress distributions in different shaping stages were obtained. The results show that the shaping process can be devided into 3 stages, and the rolling forces of stage 1 and stage 2 are different from that of stage 3. The stress and strain are large at the beginning of the plate entering the roller, and then become uniform. The distribution of the stress gets smaller from middle to the two ends.