High-strength copper-beryllium alloy

China Patent

PATENT NO 113795602
APP PUB NO CN-113795602-A
SERIAL NO

202080033751

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Abstract

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The invention relates to a method for producing a copper-beryllium alloy product. The method comprises the following steps: a base alloy having 0.15wt% to 4.0wt% beryllium is prepared and has grains and an initial cross-sectional area. The method also includes cold working the base alloy to an area cold shrink (CRA) percentage based on the initial cross-sectional area of greater than 40%, and heat treating the cold worked alloy to produce a copper beryllium alloy product. When viewed in the direction of cold working, the crystal grain structure of the copper beryllium alloy product has an orientation angle of less than 45 degrees with respect to the cold working surface. The copper beryllium alloy product passes through 10 6 Exhibits a fatigue strength of at least 385MPa after one test cycle.

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Patent Owner(s)

Patent OwnerAddress
EIS OPTICS LTDUSOHIO USA OHIO

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Inventor(s)

Inventor Name Address
CARL R ZIEGLER -
JOHN E GATEHOUSE -
BRUCE D SCHMECK -
MICHAEL J GADIAN -
FRITZ GRESIN -
JEFFREY S HOYER -
MICHAEL F TYSON -

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