New aspects of orbital forming technology

Abstract

During orbital forming, the material flow is realized both by radial and transversal motion. By orbital motion of the upper die and vertical motion of the bottom die, the material is transferred from area of active plastic deformation to area of passive plastic deformation. At the edge parts of semi product arise a compressive stress that leads to a deformation increase in the comparison with classical technology. The paper presents an analysis of the results that have been obtained by testing the method of orbital forming for low-carbon steel, as well as the guidelines for ensuring an optimum process mode for symmetrical elements.