Appeal 2007-1529
Application 10/385,722
maintaining the alloy at an elevated temperature; for example, 380 to 430°C
for a suitable period of time to improve formability (Specification ¶ 0032).
Claims 1, 8, and 36 are illustrative and reproduced below:
1. A method of manufacturing magnesium alloy products
comprising the steps of:
casting a magnesium alloy containing 2-10 mass percent
aluminum to obtain a cast semifinished product having crystal grain size not
greater than 30 µm;
subjecting the cast semifinished product to solution treatment at a
temperature between the solid solution temperature and the solidus curve of
the composition of the alloy,
after solution treatment, forging the cast semifinished product
to have a forged semifinished product having crystal grain size not greater
than 10 µm, and
further forging the forged semifinished product to have a
desired shape.
8. A method of manufacturing magnesium alloy products
comprising steps of:
casting a magnesium alloy containing 2-10 mass percent
aluminum to obtain a cast semifinished product having crystal grain size not
greater than 10µm
subjecting the cast semifinished product to solution treatment at
a temperature between the solid solution temperature and the solidus curve
of the composition of the alloy, and
after solution treatment, forging the semifinished product to
have a desired shape;
wherein the alloy is an AZ or an AM magnesium alloy.
36. A method of manufacturing magnesium alloy products
comprising steps of:
2
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Last modified: September 9, 2013