公开(公告)号：US20220097123A1

公开(公告)日：2022-03-31

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

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.