Method for manufacturing golf club head
View Patent ↗A method for manufacturing a head 2 includes the steps of: (A) producing a plurality of head components Ph; (B) welding at least two of the head components Ph to each other while abutting the head components Ph on a guide core gc 1 ; and (C) removing the guide core gc 1. Preferably, the guide core gc 1 is made of a water-soluble material. Preferably, at least one of the head components Ph is produced by a press process. Preferably, the guide core gc 1 has a lack part Ms 1 . Preferably, existence of the lack part Ms 1 avoids contact between a welding joint part wd 1 and the guide core gc 1 in the step B.
1. A method for manufacturing a golf club head, comprising the steps of:
(A) producing a plurality of head components including a face member;
(B) welding at least two of the head components to each other while abutting the head components on a guide core, one of said at least two of the head components that are welded in the step (B) being the face member; and
(C) removing the guide core,
wherein the golf club head on the guide core includes a face; a crown; a sole; and a hosel, the face member constituting at least a part of the face.
2. The method according to claim 1 , wherein the guide core is made of a water-soluble material.
3. The method according to claim 1 , wherein at least one of the head components is produced by a press process.
4. The method according to claim 1 , wherein the guide core includes a recess located at a welding joint formed during welding in step (B) such that the guide core avoids contact with the welding joint.
5. The method according to claim 1 , wherein each of at least two of the head components has a connecting part; the connecting parts are connected to each other in the step (B); and the contact area between the guide core and the head components is increased by the connection in the abutment in step (B).
6. The method according to claim 5 , further comprising the step of:
(D) removing the connecting parts after the welding.
7. The method according to claim 1 , wherein all the head components are abutted on the guide core in step (B).
8. The method according to claim 1 , wherein before welding is completed in step (B), at least two of the head components are abutted on the guide core and a head specification including loft angle, lie angle and/or face angle is measured.
9. The method according to claim 1 , wherein
at least one of the head components has a projection provided on an inner surface side thereof;
the guide core has at least one recess; and
the projection is engaged with the recess in the abutment of step (B).
10. The method according to claim 1 , wherein
at least one of the head components has a recess formed on an inner surface side thereof;
the guide core has at least one projection; and
the recess is engaged with the projection in the abutment of step (B).
11. The method according to claim 5 , wherein springback is generated in at least one of the head components;
deformation decreasing the springback is generated by the connection of the connecting parts; and
the contact area between the guide core and the head components is increased by the deformation.
12. The method according to claim 1 , wherein the head components further include a sole member, and a welded body is obtained by abutting the sole member and the face member on the guide core and welding both the sole member and the face member in the step (B).
13. The method according to claim 1 , wherein the head components further include a sole member and a crown member, and wherein the face member, the crown member and the sole member are welded in the step (B).