公开(公告)号：US20150336154A1

公开(公告)日：2015-11-26

申请号：US14412466

申请日：2013-02-15

申请人： INSTITUTE FOR RESEARCH & INDUSTRY COOPERATION PUSAN NATIONAL UNIVERSITY

发明人： Young Hoon MOON ,  Byeong Don JOO ,  Sang Yoon KIM

IPC分类号： B21D26/051 ,  B21D26/041

CPC分类号： B21D26/051 ,  B21D26/041 ,  B32B1/08 ,  B32B3/18 ,  B32B2597/00 ,  F16L9/00 ,  F16L9/006 ,  F16L58/02

摘要： A method for manufacturing a hollow hydro-formed product using a multi-tube assembly is provided, which comprises the steps of: (a) stably placing a multi-tube assembly in a Die, the hollow inner tube having fluid channel holes radially formed therethrough; (b) injecting fluid into the inner periphery of the inner tube; (c) applying fluid pressure to the inner periphery of the outer tube by the fluid while the fluid is discharged through the fluid channel holes of the inner tube; and (d) obtaining a formed product having an intended outer peripheral shape completed according to diameter-enlargement and plastic deformation of the outer tube. The inner periphery of the outer tube is pressed and hydro-formed by discharging the fluid through the fluid channel holes of the inner tube formed through the inner tube of the multi-tube assembly.

摘要翻译： 提供了一种使用多管组件制造中空加氢成型产品的方法，其包括以下步骤：（a）将多管组件稳定地放置在模具中，所述中空内管具有径向形成在其上的流体通道孔 ; （b）将流体注入内管的内周; （c）当流体通过内管的流体通道孔排出时，通过流体将流体压力施加到外管的内周; 和（d）根据外管的直径扩大和塑性变形获得具有预期的外周形状的成形制品。 通过将流体排出通过多管组件的内管形成的内管的流体通道孔，将外管的内周压入并流体加压。