Title:
HIGH-SPEED PUNCHING APPARATUS FOR MANUFACTURING METAL SHEET AND METHOD FOR MANUFACTURING METAL SHEET BY USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/214628
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a metal sheet and, more specifically, to: a high-speed punching apparatus capable of manufacturing a metal sheet with high flatness which has no curvature at a shape edge portion, by press-compression processing; and a method for manufacturing a metal sheet with high flatness by using the high-speed punching apparatus.
Inventors:
KIM YONG JIN (KR)
HWANG IN YOUNG (KR)
HWANG IN YOUNG (KR)
Application Number:
PCT/KR2022/016131
Publication Date:
November 09, 2023
Filing Date:
October 21, 2022
Export Citation:
Assignee:
T&D TECH CORP (KR)
International Classes:
B21D31/06; B21D1/06; B21D37/12
Foreign References:
| CN208555656U | 2019-03-01 | |||
| KR20140005328A | 2014-01-14 | |||
| JP2005285960A | 2005-10-13 | |||
| KR20190036582A | 2019-04-05 | |||
| KR101743956B1 | 2017-06-07 |
Attorney, Agent or Firm:
Y.S.CHANG & ASSOCIATES (KR)
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