| 摘要 |
A method for the reinforcement of a wall region of a three-dimensional attachment for high torque loads, wherein, a plate with a substantially evenly curved outer contour is cut out of a flat strip and the plate is formed and fine blanked into a pot-shaped body with projections and/or impressions and/or indentations and/or recesses and/or sinks and/or holes and/or pivots by a forming and fine blanking tool including die, counter-die, die plate, V-shaped projection and pressure plate, whereby a circular edge for a toothing is formed at the body. Hinge attachments with a much higher safety with regard to fracture of the wall region between the edge with an inner toothing and the pot-shaped body of the hinge attachment are produceable in a cost-effective way. The thickness of the wall region between the edge and the pot-shaped body of the attachment by a purposeful material shifting with at least a two-staged cold-extrusion process in respectively opposite flow directions angular to the die movement is reinforced in such manner that the purposeful material shifting in the wall region approximately equalizes the runoff of material caused by the forming.
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