Co-forged golf club head and method of manufacture
First Claim
1. A forged golf club head comprising:
- a body portion made out of a first material having at least one cavity;
at least one weight adjustment portion made out of a second material encased within said body portion; and
a cap, made out of said first material, at least partially enclosing said cavity;
wherein an outer surface area of said at least one weight adjustment portion equals an inner surface area of said at least one cavitywherein said first material has a first thermal expansion coefficient and said second material has a second thermal expansion coefficient, and wherein said first thermal expansion coefficient is greater than or equal to said second thermal expansion coefficient,wherein said at least one weight adjustment portion is located near a sole of said golf club head, andwherein said first thermal expansion coefficient is about 8.0 μ
in/in °
F., and said second thermal expansion coefficient is about 6.1 μ
in/in °
F.
4 Assignments
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.
-
Citations
10 Claims
-
1. A forged golf club head comprising:
-
a body portion made out of a first material having at least one cavity; at least one weight adjustment portion made out of a second material encased within said body portion; and a cap, made out of said first material, at least partially enclosing said cavity; wherein an outer surface area of said at least one weight adjustment portion equals an inner surface area of said at least one cavity wherein said first material has a first thermal expansion coefficient and said second material has a second thermal expansion coefficient, and wherein said first thermal expansion coefficient is greater than or equal to said second thermal expansion coefficient, wherein said at least one weight adjustment portion is located near a sole of said golf club head, and wherein said first thermal expansion coefficient is about 8.0 μ
in/in °
F., and said second thermal expansion coefficient is about 6.1 μ
in/in °
F. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A forged golf club head comprising:
-
a body portion made out of a first material having at least one cavity; at least one weight adjustment portion made out of a second material encased within said body portion; and a cap, made out of said first material, completely enclosing said cavity; wherein an outer surface area of said at least one weight adjustment portion equals an inner surface area of said at least one cavity, wherein said first material has a first forging temperature and said second material has a second forging temperature, wherein said first forging temperature and said second forging temperature are substantially similar to one another, and wherein said first forging temperature is about 1,200 °
C., and said second forging temperature is about 1,100 °
C. - View Dependent Claims (7, 8, 9, 10)
-
Specification