METHOD FOR PRODUCING LIGHT ALLOY VEHICLE WHEEL
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United States of America Patent
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Issued Date -
Jun 2, 2011
app pub date -
Oct 28, 2010
filing date -
Dec 2, 2009
priority date (Note) -
Abandoned
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Abstract
A method for producing a light alloy vehicle wheel in which a casting material is forged to produce a rim-integrated vehicle wheel, the method comprising: a casting step of preparing a flat, square billet by continuous casting or semi-continuous casting using a mold whose mold outlet port is formed into a substantially rectangular shape; a cutting step of cutting the flat, square billet at a right angle to a casting direction to flatly form a rectangular casting material in the casting direction; a primary forging step of pressing down the rectangular casting material from a flat surface side of the rectangular casting material to forge the rectangular casting material into a disc shape; and a secondary forging step of forging the disc-shaped forging product into a rough wheel shape having a disc portion and a rim portion.
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