公开(公告)号：US20170157877A1

公开(公告)日：2017-06-08

申请号：US15371344

申请日：2016-12-07

申请人： Familie Burger GbR

发明人： Manuel BURGER

IPC分类号： B30B7/04 ,  B21D41/02 ,  B21D41/04 ,  B60R21/264

CPC分类号： B30B7/04 ,  B21D17/02 ,  B21D19/005 ,  B21D41/02 ,  B21D41/026 ,  B21D41/04 ,  B60R21/264 ,  B60Y2410/12

摘要： A method and device for production of a combustion chamber tube for restraint systems in vehicles. The combustion chamber tube is embossed by several embossing dies arranged stellate around the combustion chamber tube and movable by an annular compression module with several punches movable in synchronized fashion in the radial direction and two inner punches extending into the ends of the combustion chamber tube, each with a support mandrel and a shaping mandrel movable relative to support mandrel. The combustion chamber tube is embossed from the outside by the embossing dies radially movable via punches against the support mandrels and the ends of the combustion chamber tube are shaped by shaping mandrels movable relative to support mandrels when the embossing dies are closed.