Title:
ALUMINUM ALLOY HOLLOW-EXTRUDED MATERIAL FOR ELECTROMAGNETIC FORMING
Document Type and Number:
Japanese Patent JP2013189706
Kind Code:
A
Abstract:
To provide a 7000-series aluminum alloy hollow-extruded material that is extruded through a porthole, with which in the case of a pipe expansion by electromagnetic forming, the excellent pipe-expanding formability can be obtained.
A 7000-series aluminum alloy hollow-extruded material is composed, by mass%, of 3.0-8.0% Zn, 0.4-2.0% Mg, 0.05-2.0% Cu, ≤0.3% Si, ≤0.35% Fe, ≤0.10% the total of one or more kinds of Mn, Cr and Zr and the balance Al with inevitable impurities, and has a recrystallized structure in the whole cross-section.
Inventors:
SHIKAMA TAKAHIRO
YOSHIHARA SHINJI
YOSHIHARA SHINJI
Application Number:
JP2012286121A
Publication Date:
September 26, 2013
Filing Date:
December 27, 2012
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
C22C21/10; B21D26/14; C22F1/00; C22F1/04
Domestic Patent References:
JPH08170139A | 1996-07-02 | |||
JP2010196089A | 2010-09-09 | |||
JPH116044A | 1999-01-12 | |||
JP2010159005A | 2010-07-22 | |||
JP2004189062A | 2004-07-08 |
Attorney, Agent or Firm:
Kaoru Kamoto