公开(公告)号：US11235367B2

公开(公告)日：2022-02-01

申请号：US16128732

申请日：2018-09-12

申请人： AUDI AG ,  Benteler Automobiltechnik GmbH

发明人： Matthias Gotthelf ,  Esref Ciklakarsli ,  Erik Povl Marcussen

IPC分类号： B21D41/04 ,  B21C23/08 ,  B21C37/15 ,  B21C37/30 ,  B21D37/10 ,  B21D22/02 ,  B21C23/00 ,  B21D53/88

摘要： A method for the calibration or end sizing of a hollow profile component produced by extrusion for automobile manufacturing. The hollow profile component is inserted into the cavity of an opened press tool and closing the press tool. Expandable mandrels are introduced into the open profile ends of the hollow profile component. The hollow profile component is calibrated or end-sized by applying force simultaneously on the outside and on the inside. The expandable mandrels are retracted, opening of the press tool, and removing of the hollow profile component.

公开(公告)号：US10106113B2

公开(公告)日：2018-10-23

申请号：US15543321

申请日：2016-01-14

申请人： AUDI AG

发明人： Esref Ciklakarsli ,  Matthias Gotthelf

IPC分类号： B62D21/15 ,  B60R19/34 ,  B60R19/18

摘要： A hollow profiled element, includes a plurality of longitudinal edges, which extend in a longitudinal direction and are connected by side walls, wherein a longitudinal edge has at least one depression, the depression base of which extends transversely to the longitudinal direction and at an angle to the side walls forming the longitudinal edge. According to an embodiment of the invention, a side wall forming the longitudinal edge has a transversely extending bulge in the region of the depression, wherein the depression base transitions at the end into the bulge in the region of said side wall and the bulge is designed with a shape that has a convex form in the transition to the depression and drops to the level of the side wall before an opposite longitudinal edge is reached.