US 6,981,924 B2
High density alloy for improved mass properties of an article
Uday V. Deshmukh, Oceanside, Calif. (US)
Assigned to Callaway Golf Company, Carlsbad, Calif. (US)
Filed on Nov. 30, 2004, as Appl. No. 10/904,814.
Application 10/904814 is a division of application No. 10/604518, filed on Jul. 28, 2003.
Prior Publication US 2005/0075195 A1, Apr. 07, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 53/04 (2006.01)
U.S. Cl. 473—342 3 Claims
OG exemplary drawing
 
1. A method of manufacturing an article, the method comprising:
investment casting the article from a composition comprising 35 to 70 weight percent nickel, 20–35 weight percent tungsten and 10–30 weight percent chromium;
wherein the investment cast article has a density ranging from 9.0 g/cm3 to 10.5 g/cm3, and a Rockwell Hardness ranging from 80 to 92;
wherein the article is a portion of a golf club head comprises a sole wall, a toe wall extending upward from the sole wall at a first end of the sole wall, a hosel extending upward from the sole wall at a second end of the sole wall, and a heel wall extending upward from the sole wall.