公开(公告)号：US11684965B2

公开(公告)日：2023-06-27

申请号：US17528343

申请日：2021-11-17

申请人： Xi'an Space Engine Company Limited

发明人： Jing Zhang ,  Jinwu Miao ,  Yanpei Shi ,  Kai Wang ,  Zhimin Chen ,  Yang Ding ,  Guojin Zhang

IPC分类号： B21D53/16 ,  B21J5/02 ,  C22C9/02

CPC分类号： B21D53/16 ,  B21J5/02 ,  C22C9/02

摘要： A method for forming a QCr0.8 alloy tapered cylindrical ring, including: heating a standard QCr0.8 alloy cylindrical part followed by upsetting and stretching at least twice to obtain a primary blank; heating the primary blank followed by upsetting and chamfering to obtain a secondary blank, where a diameter of a top end is greater than that of a bottom end; subjecting the secondary blank to backward extrusion to form a preform; machining the preform to remove a flash and a bottom residue; subjecting a bottom end of the preform to local bulging to enable a shape and a size thereof to match that of a drive roller in a forming tooling, so as to form a profiled ring blank; and rolling the profiled ring blank by a radial-axial ring rolling machine with the forming tooling to form the tapered cylindrical ring.