Golf club head and method of manufacturing the same

Details Golf club head and method of manufacturing the same Golf club head and method of manufacturing the same

2005-08-16

2005-08-16

Vidovich, Gregory (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C420S420000

Reexamination Certificate

active

06929566

ABSTRACT:
A method of manufacturing a golf club head comprises: making a billet of a titanium alloy Ti-6Al-4V by machining an ingot of the titanium alloy; forging the billet into a face plate within a temperature range of from (the beta transformation temperature −150 degrees C.) to (the beta transformation temperature −20 degrees C.); and jointing the face plate and a head main body, whereby the golf club head comprise a face portion for hitting a ball, at least part of which is made of an alpha and beta type titanium alloy Ti-6Al-4V including alpha phase crystal structure whose average grain size is not less than 20 micrometers but less than 70 micrometers.

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patent: 5509979 (1996-04-01), Kimura
patent: 6663501 (2003-12-01), Chen
patent: 2004/0035509 (2004-02-01), Woodfield
patent: 8-224327 (1996-09-01), None
patent: 10-179817 (1998-07-01), None
patent: 11077212 (1999-03-01), None
patent: 2001-288518 (2001-10-01), None

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