Title:
バルジ成形用Al-Mg系アルミニウム合金中空押出材
Document Type and Number:
Japanese Patent JP4707074
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an aluminum alloy hollow extrusion material for bulging suitable to forming for the frames, joints or the like of automobiles, rolling stocks or building members. SOLUTION: The Al-Mg based aluminum alloy extrusion material contains, by mass, 1.5 to 5.0% Mg and 0.005 to 0.2% Ti. Provided that its total elongation is defined as δT, and uniform elongation as δU, δT is controlled to >=15%, and δU/δT to >=0.75.
More Like This:
Inventors:
Kawai Hitoshi
Masakazu Hirano
Masakazu Hirano
Application Number:
JP2000367771A
Publication Date:
June 22, 2011
Filing Date:
December 01, 2000
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B21C23/00; C22C21/06; B21C23/08; B21C23/14; B21D26/02; B21D26/037; B21D26/053
Domestic Patent References:
| JP3247739A | ||||
| JP2000210720A | ||||
| JP5271836A |
Attorney, Agent or Firm:
Kaoru Kamoto