公开(公告)号：US4619129A

公开(公告)日：1986-10-28

申请号：US552504

申请日：1983-11-17

申请人： Georgi K. Petkov ,  Todor S. Todorov ,  Yordanka R. Atanassova ,  Nikola M. Netzov ,  Stefan K. Deevski ,  Nikola I. Radev ,  Botyo P. Botev ,  Georgi M. Metev ,  Ivan H. Naydenov ,  Yakim N. Petrov

发明人： Georgi K. Petkov ,  Todor S. Todorov ,  Yordanka R. Atanassova ,  Nikola M. Netzov ,  Stefan K. Deevski ,  Nikola I. Radev ,  Botyo P. Botev ,  Georgi M. Metev ,  Ivan H. Naydenov ,  Yakim N. Petrov

IPC分类号： B21J5/04 ,  B21D26/02 ,  B21D26/041 ,  B21D26/045 ,  B21D26/06

CPC分类号： B21D15/06 ,  B21D15/10 ,  B21D26/041 ,  B21D26/045 ,  B21D26/06 ,  Y10T29/49806

摘要： Method of and apparatus for forming blanks by hydroplastic deformation. In a closed deformation space there is supplied a working fluid under high pressure and, simultaneously, the material of the blank to be deformed which is disposed in the deformation space is subjected to plastic deformation by the working fluid. In the zone of the closed deformation space there is applied a concentrated and controllable impulsed fluid load, this load being applied cyclically at equal time intervals and being controlled along the length of the blank being deformed.The apparatus of the invention comprises a working tool with a blind central hole and radial channels connected thereto, and a female die in which the blank to be deformed is disposed. The working tool is connected to a supply cylinder in which there is provided a pressure chamber, the pressure chamber containing a piston connected to the working tool. The supply cylinder is fastened to the movable part of a press. The pressure chamber is connected to an impulse activator by means of a plunger which is attached tightly to the supply cylinder.

摘要翻译： 通过水力变形形成坯料的方法和设备。 在闭合的变形空间中，在高压下供给工作流体，同时，设置在变形空间中的变形坯料的材料同时被工作流体塑性变形。 在闭合变形空间的区域中，施加了集中和可控的脉冲流体负载，该负载以相等的时间间隔周期性地施加，并且沿着坯件的变形长度被控制。 本发明的装置包括具有盲中心孔和连接到其上的径向通道的加工工具，以及设置待变形坯件的阴模。 工作工具连接到供应缸，其中设置有压力室，压力室包含连接到工作工具的活塞。 供应筒被紧固到压机的可移动部分。 压力室通过柱塞连接到脉冲激活器，该柱塞紧紧地附接到供应缸。