Abstract
The beginning of the methodology for calculating the technological parameters of the process of constrained extrusion of rectangular brackets under conditions of plane deformation in the general case of misalignment of the punch and matrix is outlined. Described the definition of sections of the working stroke, which were free extrusion, partially constrained extrusion and completely constrained extrusion. The calculation of limiting cases of asymmetric extrusion, which, on the one hand, is reduced to a symmetrical extrusion, and, on the other hand, to a complete overlap of a small outflow gap, is considered. In the developed technique, extrusion of both non-hardening and hardening material is considered. In the latter case, the consideration of the hardening of the extruded material is described in detail. The above formulas make it possible to determine such important parameters of the stamping process as the total and specific deforming forces, as well as the heights of the walls formed as a result of extrusion.
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