Invention Grant
- Patent Title: Preparing method of speaker grill for vehicles
-
Application No.: US16665283Application Date: 2019-10-28
-
Publication No.: US11026006B2Publication Date: 2021-06-01
- Inventor: Dong Jae Choi
- Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
- Applicant Address: KR Seoul; KR Seoul
- Assignee: HYUNDAI MOTOR COMPANY,KIA MOTORS CORPORATION
- Current Assignee: HYUNDAI MOTOR COMPANY,KIA MOTORS CORPORATION
- Current Assignee Address: KR Seoul; KR Seoul
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Priority: KR10-2019-0099352 20190814
- Main IPC: H04R1/02
- IPC: H04R1/02 ; H04R31/00

Abstract:
A method of manufacturing a speaker grill for a vehicle includes coating a coating layer by depositing metal on one side of a steel sheet; pre-etching including forming a first masking layer on one portion of the coating layer, etching the other portion of the coating layer on which the first masking layer is not formed, and removing the first masking layer to form a first etched steel sheet; and performing hole etching including forming a second masking layer on one portion of the first etched steel sheet where the coating layer is present, etching the other portion of the first etched steel sheet on which the second masking layer is not formed, and removing the second masking layer to form a second etched steel sheet, wherein a total area of the first masking layer is smaller than a total area of the second masking layer.
Public/Granted literature
- US20210051383A1 PREPARING METHOD OF SPEAKER GRILL FOR VEHICLES Public/Granted day:2021-02-18
Information query