Title:
ALUMINIUM ALLOY FORGING AND METHOD OF MANUFACTURE FOR SAME
Document Type and Number:
WIPO Patent Application WO/2011/122263
Kind Code:
A1
Abstract:
Disclosed is an aluminium alloy forging for use in automotive suspension parts and the like, and a method of manufacture for same. The aluminium alloy forging contains Si 0.4-1.5 wt%, Fe greater than 0.4 wt% and equal to or less than 1.0 wt%, Cu equal to or less than 0.40 wt%, Mg 0.8-1.3 wt% and Ti 0.01-0.1 wt%; Zn is restricted to equal to or less than 0.05 wt%; and the alumionium alloy forging contains at least one selected from among the following group comprising: Mn 0.01-1.0 wt% and Cr 0.1-0.4%; and Zr 0.05-0.2 wt%. Hydrogen content is restricted to 0.25ml or less per 100g of Al, and the remainder is composed of unavoidable impurities and Al. The average crystal grain size is 50µm or less, the crystallised area ratio is 3% or less, and the average crystalline product size is 8µm or less.
Inventors:
HORI MASAYUKI
INAGAKI YOSHIYA
INAGAKI YOSHIYA
Application Number:
PCT/JP2011/055346
Publication Date:
October 06, 2011
Filing Date:
March 08, 2011
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
HORI MASAYUKI
INAGAKI YOSHIYA
HORI MASAYUKI
INAGAKI YOSHIYA
International Classes:
C22C21/06; B21J5/00; C22C21/02; C22F1/05; B21K1/26
Domestic Patent References:
| WO2007114078A1 | 2007-10-11 |
Foreign References:
| JP2002060881A | 2002-02-28 | |||
| JP2001107168A | 2001-04-17 | |||
| JP2000144296A | 2000-05-26 | |||
| JP2007169699A | 2007-07-05 | |||
| JPH06256880A | 1994-09-13 | |||
| JP2008163445A | 2008-07-17 |
Other References:
See also references of EP 2554698A4
Attorney, Agent or Firm:
TANAKA, Mitsuo et al. (JP)
Mitsuo Tanaka (JP)
Mitsuo Tanaka (JP)
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Claims: