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公开(公告)号：US20230158561A1
公开(公告)日：2023-05-25
申请号：US17671945
申请日：2022-02-15
Applicant: Guan-Hong LIN
Inventor： Guan-Hong LIN
CPC classification number: B21D53/20 , F16B43/004
Abstract: A method for manufacturing washer includes steps of providing a wire material, deforming part of the wire material to be a ring shape, cutting off the part in the ring shape to obtain a ring-shaped wire material, and forging the ring-shaped wire material into a washer having a split defined by end surfaces at two opposite ends of the ring-shaped wire material.
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