Patent ID: 6381828
Filing Date: 2002-05-07
Classification: A63B,B21J,B21K,C22F,C23F,Y10T

Abstract:
A method for producing a face member for a golf club head, the method comprising:heating a metal bar to a temperature ranging from 900Â° C. to 970Â° C. for a time period ranging from 10 minutes to 17 minutes, the metal bar composed of a titanium material; pressing the heated metal bar into an L-shape metal bar; heating the L-shape metal bar to a temperature ranging from 900Â° C. to 970Â° C. for a time period ranging from 10 minutes to 17 minutes; pressing the heated L-shape metal bar into an intermediate shape face member; heating the intermediate shape face member to a temperature ranging from 900Â° C. to 970Â° C. for a time period ranging from 10 minutes to 17 minutes; pressing the heated intermediate shape face member into the final face member configuration, the final face member configuration having a striking plate and a face extension extending laterally from a perimeter of the striking plate a distance ranging from 0.2 inch to 1.0 inch, the striking plate having a face area ranging from 4.00 square inches to 7.50 square inches and the face extension having an upper portion, a lower portion opposite the upper portion, a heel wall substantially perpendicular to the plate portion, and a toe wall opposite the heel wall; and chemically etching the final face member configuration in single acidic bath to uniformly remove 0.002 inch to 0.015 inch from the exterior surface and the interior surface of the final face member configuration to create a final face member configuration that has a thickness ranging from 0.050 inch to 0.250 inch.