国家/地区 中国（2）
IPC部 C（2）
IPC大类 C21（2）
IPC小类 C21D（2）
IPC C21D007/06（2） C22F001/00（2）
发明人 ZHANG C（2）
公开年 2021（2）
申请年 2020（2） 
专利权人 AECC COMML A.（2） UNIV EAST CH.（2）

Composite strengthening method for improving fatigue life of hole-containing structure, involves adopting jet strengthening technique to strengthen surface of hole, where hole is extruded and reinforced by extruding process.

ZHANG P, ZHANG X, GONG C, TU S, ZHANG C, LIU Y, LIU S

Jet strengthening device comprises nozzle provided with hollow cavity and connected with mixing chamber, control device to control operation of first stirrer, second stirrer and lifting platform and nozzle connected with mixing chamber.

ZHANG X, ZHANG P, ZHANG C, TU S, ZENG F, GONG C, LIU Y, WANG Y