Title:
ALUMINUM CLAD SHEET MATERIAL HAVING PROJECTING TUBE PART AND ITS PRODUCTION METHOD
Document Type and Number:
Japanese Patent JP2002088433
Kind Code:
A
Abstract:
To provide a thin aluminum clad sheet material which has excellent strength, can be thinned and has projecting tube parts and to provide its production method.
In this aluminum clad sheet material A in which plural aluminum sheet materials 1 and 2 are clad, and further, in the joined boundary of the sheet materials, at least one side is formed with projecting tube parts by its expansion into tubes, at least one of the aluminum sheet materials is formed with an Al-Mg-Si-Cu based alloy containing, by weight, 0.30 to 0.70% Mg, 0.35 to 1.00% Si and 0.11 to 0.50% Cu.
Inventors:
YOSHIDA KATSUOKI
CHO SUSUMU
YAMANOI TOMOAKI
CHO SUSUMU
YAMANOI TOMOAKI
Application Number:
JP2000280079A
Publication Date:
March 27, 2002
Filing Date:
September 14, 2000
Export Citation:
Assignee:
SHOWA DENKO KK
International Classes:
B21D26/021; B21D26/059; B21D53/04; B23K20/00; B23K20/04; B23K20/18; C22C21/00; C22F1/00; C22F1/05; B23K103/10; (IPC1-7): C22C21/00; B21D26/02; B21D53/04; B23K20/00; B23K20/04; B23K20/18; C22F1/05
Attorney, Agent or Firm:
Hisayoshi Shimizu (2 outside)