MULTIPLE MATERIAL GOLF CLUB HEAD AND A METHOD FOR FORMING A GOLF CLUB HEAD

• US 20110065528A1
• Filed: 09/07/2010
• Published: 03/17/2011
• Est. Priority Date: 09/15/2009
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: DAWSON, PATRICK, GALLOWAY, J. ANDREW, RICE, BRADLEY C.
• Granted Patent: US 8,425,349 B2
• Time in Patent Office: Days
• US Class Current: 473/342
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 2209/023 Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: Y10T 29/49988 Metal casting
• CPC Class Codes: Y10T 29/49989 Followed by cutting or removing material

Abstract

A method for forming a golf club head having a volume of approximately 460 cubic centimeters, the method comprising the steps of casting a face component, attaching a bonding flange, stamping a metal sheet of titanium alloy to form a sole component, welding the sole component to the face component to create a golf club head subassembly having a weld line of approximately six inches and polishing the weld line.

Claims

1. A method for forming a golf club head having a volume of approximately 460 cubic centimeters, the method comprising:

casting a face component from a titanium alloy material, the face component comprising a striking plate section and a return section, the return section having a bonding flange of approximately 0.200 inch extending rearward;

attaching a bonding flange to the return section of the face component;

stamping a metal sheet of titanium alloy to form a sole component;

welding the sole component to the face component to create a golf club head subassembly having a weld line of approximately six inches;

polishing the weld line;

compression molding a crown component from a graphite compound, the crown component having a bonding flange;

bonding the crown component to the golf club head subassembly using an adhesive to create an unfinished golf club head; and

finishing the unfinished golf club head to create a golf club head having a volume of approximately 460 cubic centimeters.

2. The method according to claim 1 wherein the bonding flange of the crown component does not overlap the bonding flange of the face component.

3. The method according to claim 1 wherein claim 1 wherein the face component further comprises a hosel.

4. The method according to claim 3 wherein the hosel is an interior hosel.

5. The method according to claim 3 wherein the hosel is an exterior hosel.

6. The method according to claim 1 wherein the golf club head has seven grams of additional discretionary mass as compared to high performance golf club head construction.

7. The method according to claim 1 wherein the face component has a milled variable face thickness pattern.

8. A method for forming a golf club head, the method comprising:

casting a face component, the face component comprising a striking plate section and a return section;

attaching a bonding flange to the return section of the face component;

stamping a metal sheet to form a sole component;

welding the sole component to the face component to create a golf club head subassembly having a weld line;

polishing the weld line;

compression molding a crown component from a non-metal compound, the crown component having a bonding flange;

bonding the crown component to the golf club head subassembly using an adhesive to create an unfinished golf club head; and

finishing the unfinished golf club head to create a golf club head.

9. The method according to claim 8 wherein attaching the bonding flange to the return section of the face component comprises welding the bonding flange to the return section of the face component.

10. The method according to claim 8 wherein attaching the bonding flange to the return section of the face component comprises adhesively bonding the bonding flange to the return section of the face component.

11. A golf club head comprising:

a face component comprising a striking plate section and a return section;

a bonding flange attached to the return section of the face component;

an aft body attached to the face component.

12. The golf club head according to claim 11 wherein the bonding flange is composed of a titanium alloy material.

13. The golf club head according to claim 11 wherein the bonding flange is composed of a stainless steel material.

14. The golf club head according to claim 11 wherein the bonding flange is composed of a polymer material.

15. The golf club head according to claim 11 wherein the bonding flange is composed of a composite material.

16. The golf club head according to claim 11 wherein the bonding flange is composed of an aluminum alloy material.

17. The golf club head according to claim 11 wherein the bonding flange is composed of a magnesium alloy material.

18. The golf club head according to claim 11 wherein the face component and the bonding flange are composed of a titanium alloy material.

19. The golf club head according to claim 11 wherein the face component and the bonding flange are composed of a stainless steel material.

20. The golf club head according to claim 11 wherein the face component is composed of a titanium alloy material and the bonding flange is composed of a polymer material.