Mid-density materials for golf applications
View Patent ↗The golf club head has a body comprising a crown portion, a sole portion, a toe portion, heel portion, hosel portion, rear portion, and a front portion including a striking face. At least one or more portions of the body of the golf club head is made out of at least one or more mid-density materials. The at least one mid-density material or composite of mid-density materials have a density within a range from about 4.5 g/cm 3 to 7.9 g/cm 3 . The mid-density material or composite of mid-density materials provide sufficient stiffness at a reduced weight to optimize the center of gravity and moment of inertia of the golf club head. Also, by using mid-density materials, discretionary weight of the golf club head is increased which can be used to position higher density weights at selective portions of the golf club head.
1. A golf article of manufacture, comprising:
a golf club head, the golf club head having a body, at least one or more portions of the body made out of a composite of mid-density materials; and the composite of mid-density materials having a density within a range from 4.5 g/cm 3 to 7.9 g/cm 3 ,
whereby the composite of mid-density materials provides sufficient stiffness at a reduced weight to optimize the center of gravity and moment of inertia of the golf club head, wherein the mid-density materials are co-forged using titanium and steel.
2. The golf article of claim 1 , wherein the golf club head includes a body comprising: a crown portion, a sole portion, a toe portion, a heel portion, a hosel portion, a rear portion, and a front portion including a striking face.
3. The golf article of claim 1 , wherein the densities of the one or more mid-density materials range from 5 g/cm 3 to 7.9 g/cm 3 .
4. The golf article of claim 1 , wherein the densities of the one or more mid-density materials range from 5.5 g/cm 3 to 7.5 g/cm 3 .
5. The golf article of claim a, wherein the densities of the one or more mid-density materials range from 6 g/cm 3 to 7 g/cm 3 .
6. The golf article of claim 1 , wherein co-forged steel and titanium is combined with a third element or composition.
7. The golf article of claim 6 , wherein the third element is selected from a group consisting of nickel, copper, metallic metals, and ceramic powder compacts.
8. The golf article of claim 1 , wherein the steel is in the form of a steel structure and the titanium is in the form of one or more titanium rods which are collected within the steel structure and then co-forged.
9. The golf article of claim 1 , wherein the titanium is in the form of a titanium structure and the steel is in the form of one or more steel rods which are collected within the titanium structure and then co-forged.
10. The golf article of claim 1 , wherein the mid-density materials have one or more elements selected from the group consisting of: Zr, and Hf.
11. A golf article of manufacture, comprising:
a golf club head, the golf club head having a body, at least one or more portions of the body made out of a composite of mid-density materials; and the composite of mid-density materials having a density within a range from 4.5 g/cm 3 to 7.9 g/cm 3 , whereby the composite of mid-density materials provides sufficient stiffness at a reduced weight to optimize the center of gravity and moment of inertia of the golf club head, wherein the mid-density materials have an alloy selected from the group consisting of, Zr—Nb, Zr—Mo, Zr—Hf, Zr—Ta, Zr—W, and Zr—Re.
12. The golf article of claim 11 , wherein the golf club head includes a body comprising: a crown portion, a sole portion, a toe portion, a heel portion, a hosel portion, a rear portion, and a front portion including a striking face.
13. A golf article of manufacture, comprising:
a golf club head, the golf club head having a body, at least one or more portions of the body made out of a composite of mid-density materials; and the composite of mid-density materials having a density within a range from 4.5 g/cm 3 to 7.9 g/cm 3 , whereby the composite of mid-density materials provides sufficient stiffness at a reduced weight to optimize the center of gravity and moment of inertia of the golf club head, wherein the mid-density materials are Fe—Al alloys having reduced gain size.
14. The golf article of claim 13 , wherein the Fe—Al alloys having reduced grain size include one or more elements selected from the group consisting of Ti and Zr.
15. The golf article of claim 13 , wherein the golf club head includes a body comprising: a crown portion, a sole portion, a toe portion, a heel portion, a hosel portion, a rear portion, and a front portion including a striking face.