6000 ALUMINUM EXTRUDATE EXCELLING IN PAINT-BAKING HARDENABILITY AND PROCESS FOR PRODUCING THE SAME

Title:

6000 ALUMINUM EXTRUDATE EXCELLING IN PAINT-BAKING HARDENABILITY AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2007/114521

Kind Code:

A1

Abstract:

A 6000 aluminum extrudate containing, by mass, 0.3-0.7% magnesium, 0.7-1.5% silicon, 0.35% or less copper, 0.35% or less iron and 0.005-0.1% titanium, and further containing 0.05-0.30% manganese, 0.10% or less chromium and 0.10% or less zirconium provided that at least one transition element selected from among mentioned manganese, chromium and zirconium is contained in a total amount of 0.05-0.40%, and still further containing the balance aluminum and unavoidable impurities, characterized in that the proof strength thereof is increased as much as 60 MPa or more by a thermal history equivalent to paint baking while the proof strength thereafter is set for 180 MPa or greater. This aluminum extrudate excels in paint-baking hardenability to such an extent that the proof strength applicable to structural members of automobile, etc. can be realized by the thermal history equivalent to paint baking.

Inventors:

AONO MASAMICHI (JP)
MIYAKI TOSHITAKA (JP)
YOSHIDA TOMOO (JP)

Application Number:

PCT/JP2007/057724

Publication Date:

October 11, 2007

Filing Date:

March 30, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOYOTA MOTOR CO LTD (JP)
AONO MASAMICHI (JP)
MIYAKI TOSHITAKA (JP)
YOSHIDA TOMOO (JP)

International Classes:

C22C21/02; B21C23/00; C22C21/06; C22F1/043; C22F1/00

Foreign References:

JPH11343533A	1999-12-14
JP2000328210A	2000-11-28
JP2004204321A	2004-07-22
JPH062063A	1994-01-11
JPH09176806A	1997-07-08
JP2004204321A	2004-07-22
JP2002235158A	2002-08-23

Other References: