ALUMINUM ALLOY FOR CASTING-FORGING, ALUMINUM CAST/FORGED ARTICLE, AND METHOD FOR MANUFACTURE THEREOF

Title:

ALUMINUM ALLOY FOR CASTING-FORGING, ALUMINUM CAST/FORGED ARTICLE, AND METHOD FOR MANUFACTURE THEREOF

Document Type and Number:

WIPO Patent Application WO/2004/031424

Kind Code:

A1

Abstract:

An aluminum alloy for casting-forging, which consists essentially of 0.6 to 1.8 mass % of silicon, 0.6 to 1.8 mass % of magnesium, 0.8 mass % or less of copper, 0.2 to 1.0 mass % of manganese, 0.25 mass % or less of chromium, 0.0 to 0.15 mass % of titanium and inevitable impurities; and an aluminum cast/forged article manufactured by the casting-forging of the above alloy. The above article exhibits improved mechanical properties such as tensile strength, offset yield strength and elongation over conventional articles, when used as an aluminum part for an automobile such as a part of a suspension, a frame or a part of an engine, and also can be manufactured at a low cost.

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Inventors:

KOTANI KOHJI
WATANABE MASATOSHI
MACHINO DAISUKE

Application Number:

PCT/JP2003/012514

Publication Date:

April 15, 2004

Filing Date:

September 30, 2003

Export Citation:

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Assignee:

ASAHI TEC CORP (JP)
HOEI IND CO LTD (JP)

International Classes:

B21J1/06; B21J5/00; B21K1/26; B21K3/00; B22D21/00; C22C21/02; C22C21/08; C22F1/05; (IPC1-7): C22C21/06; B21J5/00; B21K1/26; B22D21/04; C22F1/05

Foreign References:

JP2002348630A	2002-12-04
JP2002302728A	2002-10-18
JPH0978210A	1997-03-25
JPH083675A	1996-01-09
JPH07258784A	1995-10-09
JPH01225756A	1989-09-08
JPS63230844A	1988-09-27
US4082578A	1978-04-04

Other References: