Patent ID: 6777640
Filing Date: 2004-08-17
Classification: A63B,B23K

Abstract:
A method for manufacturing a golf club, said golf club comprising: a face member; a head body having an aperture on a front surface for securing the face member thereto, a cavity on a rear surface and a shaft attachment portion at one side; and a shaft connected to the head body, said method comprising the steps of:forging a raw material to form a had prototype so that the head prototype may have a face corresponding portion and a cavity corresponding portion; hollowing the face corresponding portion from the head prototype to provide a separate face corresponding portion and a resultant hollow portion, said separate face corresponding portion being processed to said face member; forming the resultant hollow portion into said aperture; forming an undercut portion on said cavity corresponding portion by inserting a mechanical processing unit from a front side of said head body into said aperture, to thereby form said cavity while forming an undercut portion by concaving a front side of an inner lower surface of said cavity downwards; and then securing said face member to the aperture by means of laser beam welding.