CO-FORGED GOLF CLUB HEAD AND METHOD OF MANUFACTURE
First Claim
1. A forged golf club head comprising:
- a body portion having a striking surface made out of a first material; and
at least one weight adjustment portion made out of a second material encased within said body portion;
wherein said at least one weight adjustment portion is encased monolithically within said body portion without any secondary attachment operations.
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0 Petitions
Accused Products
Abstract
A co-forged iron type golf club is disclosed. More specifically, the present invention discloses a co-forged iron type golf club with the body portion made out of a first material and at least one weight adjustment portion monolithically encased within the body portion of the co-forged iron type golf club head without the need for secondary attachment or machining operations. The present invention creates of an iron type golf club head from a pre-form billet that already contains two or more materials before the actual forging process resulting in a multi-material golf club head that doesn'"'"'t require any post manufacturing operations such as machining, welding, swaging, gluing, and the like.
228 Citations
19 Claims
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1. A forged golf club head comprising:
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a body portion having a striking surface made out of a first material; and at least one weight adjustment portion made out of a second material encased within said body portion; wherein said at least one weight adjustment portion is encased monolithically within said body portion without any secondary attachment operations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of forging a golf club head comprising:
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creating a cylindrical billet made out of a first material; machining one or more cavities within said cylindrical billet; partially filling in said one or more cavities with a second material to create a weight adjustment portion; filling in the remaining volume of said one or more cavities with said first material to encase said weight adjustment portion; and forging said cylindrical billet to create a body portion of said golf club head, wherein said body portion monolithically encases said weight adjustment portion within a body of said golf club head without any secondary attachment operations. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A forged golf club head comprising:
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a body portion having a striking surface made out of a first material; and at least one weight adjustment portion made out of a second material encased within said body portion; wherein said at least one weight adjustment portion is encased monolithically within said body portion without any secondary attachment operations; wherein said first material has a first flow stress at a first forging temperature, and the said second material has a second flow stress at a second forging temperature; said first flow stress and said second flow stress are substantially similar to one another, and said first forging temperature and said second forging temperature being substantially similar to one another; and wherein said first material has a first thermal expansion coefficient, and the second material has a second thermal expansion coefficient; said first expansion coefficient is greater than or equal to said second thermal expansion coefficient. - View Dependent Claims (19)
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Specification