公开(公告)号：US20240351087A1

公开(公告)日：2024-10-24

申请号：US18639411

申请日：2024-04-18

Applicant: Institute of Metal Reseach Chinese Academy of Sciences

Inventor： Yong XU ,  Shihong Zhang ,  Liangliang Xia ,  Wenlong Xie ,  Hao Li ,  Hongliang Zhu ,  Xingyu Duan

IPC: B21D22/20 ,  B21D24/08

CPC classification number: B21D22/205 ,  B21D24/08

Abstract: The present disclosure provides an impact hydroforming mold and an impact hydroforming method with integration of blank holder and feeding, belonging to the technical field of metal forming. The hydroforming mold includes: a lower concave mold, a blank holder ring, and a working sleeve assembly. A working sleeve has a liquid chamber for containing liquid medium and a stamping acceleration channel; a throttling flow channel is formed between working sleeve and blank holder ring; the liquid medium can be throttled and depressurized through the throttling flow channel and then contacted with side face of the sheet. Under the action of intensity of pressure, the edge of the sheet pressed by the blank holder ring can be allowed in a mutually adaptive way to realize feeding in a downward forming process when the middle area of the sheet suffers impact, so forming quality of a target component can be effectively improved.