Title:
METHOD FOR MOLDING ALUMINUM CASE USING PRESS AND MOLDING APPARATUS USED THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/204424
Kind Code:
A1
Abstract:
The present invention comprises: (a) a first molding step for forming an internal space of a case by bending a rim of a panel member; (b) a second molding step for forming a protrusion portion while deforming the panel member by allowing a core member to protrude from an outer wall of the panel member to an inner wall side of the panel member in a state where the pressure of the first molding step is maintained; and (c) a withdrawing step for withdrawing a product from a mold.
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Inventors:
SEO KYUNG SEON (KR)
Application Number:
PCT/KR2016/013242
Publication Date:
November 30, 2017
Filing Date:
November 17, 2016
Export Citation:
Assignee:
KYUNGIL IND CO LTD (KR)
International Classes:
B21D51/52; B21D17/02; B21D19/08; B21D37/10
Foreign References:
| KR100736655B1 | 2007-07-06 | |||
| KR101308379B1 | 2013-09-16 | |||
| KR20150103214A | 2015-09-09 | |||
| US20080180894A1 | 2008-07-31 | |||
| KR20060066692A | 2006-06-16 |
Attorney, Agent or Firm:
JI, Jeong Hun (KR)
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