Analysis and synthesis of planning for rotary draw bending of tubes processes

In this work, the main results of the analysis about the creation of a technology for metallic tube blending by the pulling method, are presented. It is shown an optimization model by multiple criteria, which allows to find a reasonable compromise between the three main faults that are inherent to this technology: Thinning, flattening on the external and internal side of the curve and wrinkling. During the searching procedure, the Tchebycheff distance is minimized, such distance is ponderated and normalized by the mentioned indicators; from the aspiration levels of the decider to the existant criteria spaces. The model results are validated with the deforming simulation and the results that are obtained in the factories.