Golf club with carburized tungsten face insert

Abstract

An improved golf club head design for irons is presented which provides a carburized tungsten alloy insert in the club face. The carburized tungsten alloy insert improves the club's center of gravity and center of mass characteristics and presents a harder surface to the golf ball, improving club face longevity. There are also improved rebound characteristics seen with the use of a carburized tungsten alloy club face insert.

1 . a golf club with a metal insert in the striking surface of the club,
 the striking surface of the club possessing a recess,   the metal insert the same shape and size as the recess,   the insert placed in the recess and attached to the striking surface with an attachment method, the upper surface of the insert and the striking surface forming a smooth plane when the insert is attached,   the upper surface of the insert possessing parallel scoring lines cut into the upper surface of the insert with a scoring method.   
   
   
       2 . The golf club of  claim 1  where the metal insert is comprised of carburized tungsten. 
   
   
       3 . The golf club of  claim 1  where the attachment method is brazing.