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US 7,112,148 B2Granted
High density alloy for improved mass properties of an article
AssigneeCallaway Golf Company
InventorUday V. Deshmukh
Life of this patent
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Abstract
The present invention is a nickel-tungsten-chromium alloy for an article of manufacture such as a portion of a golf club head (20). The nickel-tungsten-chromium alloy preferably has a density ranging from 9.0 g/cm3 to 10.5 g/cm3, and a Rockwell Hardness ranging from 50 to 92. The nickel-tungsten-chromium alloy is capable of being investment cast to form the article of manufacture.
Claims1
A golf club head comprising:
- a body having a face plate, a top wall, a sole, a heel end and a toe end, a portion of the body being composed of an investment castable nickel-tungsten-chromium alloy comprising 35 to 70 weight percent nickel, 20 to 35 weight percent tungsten and 10 to 30 weight percent chromium, the nickel-tungsten-chromium alloy having a density in the range of 9.0 g/cm3 to 10.5 g/cm3, and a Rockwell Hardness in the range of 50 to 92, the portion of the body composed of the investment castable nickel-tungsten-chromium alloy having a mass ranging from 100 grams to 240 grams.
Dependencies are inferred from the claim text.