公开(公告)号：US20230173840A1

公开(公告)日：2023-06-08

申请号：US17718556

申请日：2022-04-12

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  HANDS CORPORATION Ltd.

发明人： Young-Chan Kim ,  Young-Rae Jo ,  Jun-Min Lee ,  Byoung-Ok Park ,  Young-Sik Kim ,  Geon-Ki Han

IPC分类号： B60B3/04 ,  B21K1/32

CPC分类号： B60B3/041 ,  B21K1/32 ,  B60B2310/208 ,  B60B2310/224 ,  B60B2310/3025 ,  B60B2900/113 ,  B60B2900/133

摘要： A method for manufacturing a one-piece wheel by forging includes: producing an integral forging comprising: a disc portion, a rim portion, and an annular protrusion protruding from one side of the disc portion in a forging method; producing an outer bend by bending the annular protrusion through a flow-forming process; and forming a hollow portion by welding one end of the outer bend to one side of the rim portion. The method manufactures the one-piece wheel having stronger shear strength and stiffness and better fatigue life even while reducing the noise using the forging method.