Golf club metallic head formation
First Claim
1. In the method of forming a hollow metallic golf club head having wall structure defining a front wall, a heel, a toe, a rear wall, a sole, and a top wall, the steps that include:
- a) providing a wax shell covered pre-formed core body, the thickness of the wax shell corresponding to the desired thickness of said wall structure,b) forming a ceramic shell about the wax shell,c) removing the wax shell by melting the wax, thereby to form an opened gap between the ceramic shell and the core body,d) and casting molten metal into the opened gap, thereby to form said wall structure extending about the core body and at the sole, while forming and maintaining a rearward port structure through said rear wall formed by said wall structure and spaced from the sole, said port structure formed directly rearwardly of the main extent of said core body, and allowing said wall structure to solidify to form the head,e) removing said ceramic shell from said wall structure, and removing said core body from the interior of said solidified head, and via said rearward port structure.
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Accused Products
Abstract
A wax shell covered pre-formed core body is provided, the thickness of the wax shell corresponding to the desired thickness of the wall structure. A ceramic shell is formed about the wax shell. The wax shell is removed by melting the wax, thereby to form an opened gap between the ceramic shell and the core body. Molten metal is cast into the opened gap, thereby to form the wall structure extending about the core body and at the sole, while forming and maintaining port structure through the wall structure and spaced from the sole, and allowing the wall structure to solidify to form the head. The ceramic shell is removed from the wall structure, and the core body is removed from the interior of the solidified head, and via the port structure.
38 Citations
17 Claims
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1. In the method of forming a hollow metallic golf club head having wall structure defining a front wall, a heel, a toe, a rear wall, a sole, and a top wall, the steps that include:
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a) providing a wax shell covered pre-formed core body, the thickness of the wax shell corresponding to the desired thickness of said wall structure, b) forming a ceramic shell about the wax shell, c) removing the wax shell by melting the wax, thereby to form an opened gap between the ceramic shell and the core body, d) and casting molten metal into the opened gap, thereby to form said wall structure extending about the core body and at the sole, while forming and maintaining a rearward port structure through said rear wall formed by said wall structure and spaced from the sole, said port structure formed directly rearwardly of the main extent of said core body, and allowing said wall structure to solidify to form the head, e) removing said ceramic shell from said wall structure, and removing said core body from the interior of said solidified head, and via said rearward port structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification