Patent ID: 6440011
Filing Date: 2002-08-27
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 cylindrical metal bar having a diameter of 1.8 centimeters and a length of 10 centimeters to a temperature ranging from 900Â° C. to 970Â° C. for a time period ranging from 10 minutes to 17 minutes; pressing the heated cylindrical 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 L-shape metal bar into an intermediate shape face member; placing the intermediate shape face member into a tumbler for tumbling; coating the intermediate shape face member with a glazing compound; heating the coated intermediate shape face member ranging from 900Â° C. to 970Â° C. for a time period ranging from 10 minutes to 17 minutes; and immediately pressing the heated intermediate shape face member into a final face member configuration having a thickness in the range of 0.010 inch to 0.250 inch; and wherein the final face member comprises an upper lateral extension, a lower lateral extension, a heel wall a toe wall opposite the heel wall, and wherein the final face member extends laterally inward along its entire perimeter.