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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING AN INTEGRATED CYLINDER
Document Type and Number:
WIPO Patent Application WO/2012/081927
Kind Code:
A2
Abstract:
The present invention relates to a method for manufacturing an integrated cylinder using welding or diffusion welding. More particularly, the present invention relates to a method for manufacturing an integrated cylinder, in which four annular metal disks each having a diameter that enables the four annular metal disks to contact and be overlapped with each other, are partially welded or diffusion welded, placed within a tool, and blow-formed at a vacuum state, with the result that the two metal disks located in the middle are formed into a reinforcing portion and the outermost and innermost metal disks are formed into an inner surface and an outer surface of the cylinder. Thus, the integrated cylinder may be advantageously manufactured through a simple process with improved reliability and reduced manufacturing cost.

Inventors:
LEE HO-SUNG (KR)
YOON JONG-HOON (KR)
YOO JOON-TAE (KR)
CHO WOO HYUN (KR)
Application Number:
PCT/KR2011/009707
Publication Date:
June 21, 2012
Filing Date:
December 16, 2011
Export Citation:
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Assignee:
KOREA AEROSPACE RES INST (KR)
LEE HO-SUNG (KR)
YOON JONG-HOON (KR)
YOO JOON-TAE (KR)
CHO WOO HYUN (KR)
International Classes:
B21D26/033; B23K31/02
Foreign References:
JP2004245115A2004-09-02
JPH0994678A1997-04-08
KR960006990B11996-05-27
JPH02121734A1990-05-09
Attorney, Agent or Firm:
CHANG & HAN PATENT & LAW FIRM (KR)
장한특허법인 (KR)
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Claims: