公开(公告)号：US11376670B2

公开(公告)日：2022-07-05

申请号：US16571477

申请日：2019-09-16

Applicant: CITIC Dicastal CO., LTD.

Inventor： Haijun Guo ,  Dengyao Li ,  Gang Zhao ,  Yacong Zhang ,  Zhi Chen

IPC: B23B35/00 ,  B23B39/16 ,  B22D25/02

Abstract: The present disclosure discloses a cutting method for an aluminum alloy casting, and a trimming die. The cutting method for the aluminum alloy casting includes the following steps of: drilling a part to be cut off of the aluminum alloy casting by multiple annular drills, and withdrawing the annular drills when the annular drills drill to a preset position; and separating multiple scraps to be separated from the aluminum alloy casting by the trimming die.

公开(公告)号：US11123786B2

公开(公告)日：2021-09-21

申请号：US16830340

申请日：2020-03-26

Applicant: CITIC Dicastal CO., LTD.

Inventor： Zuo Xu ,  Haijun Guo ,  Dengyao Li ,  Zhi Chen ,  Yacong Zhang

IPC: B21D28/14 ,  B21D28/16 ,  B21D53/88

Abstract: The present disclosure relates to the technical field of trimming dies and specifically relates to a trimming die for a casting of a front steering knuckle in a double-wishbone suspension. The trimming die includes an upper roof, an intermediate plate, a movable plate, a base, springs, connecting columns, a pressing block connecting rod, a cutting edge, a pressing block, a casting, hold-down blocks, a first supporting block and second supporting blocks.