Multi-material golf club head
A golf club head made out of multi-material is disclosed herein. More specifically, the golf club head in accordance with the present invention has at least a portion of the body of the golf club head that is further comprised out of a base layer and a lightweight cover layer. The base layer may have a plurality of cutouts to help reduce unnecessary mass and the lightweight cover layer may be made out of an ultra-lightweight material to further reduce the unnecessary mass.
1. A golf club head comprising:
a striking face portion located at a frontal portion of said golf club head; and
a body portion attached to an aft portion of said striking face portion further comprising a crown portion and a sole portion;
wherein at least one of said crown portion and said sole portion further comprises a base layer and a lightweight cover layer;
said base layer further comprises a plurality of cutouts, and
said lightweight cover layer has an Internal Exposure Percentage of between about 25% to about 45%.
2. The golf club head of claim 1 , wherein said lightweight cover layer is made out of a material with a density of less than about 2.7 g/cm 3 .
3. The golf club head of claim 2 , wherein said lightweight cover layer is made out of a material with a density of less than about 1.75 g/cm 3 .
4. The golf club head of claim 3 , wherein said lightweight cover layer is made out of a material with a density of less than about 1.50 g/cm 3 .
5. The golf club head of claim 4 , wherein said lightweight cover layer is made out of a composite material.
6. The golf club head of claim 5 , wherein said base layer is made out of a material with a density of between about 4.0 g/cm 3 and about 4.7 g/cm 3 .
7. The golf club head of claim 6 , wherein said base layer is made out of a material with a density of between about 4.1 g/cm 3 and about 4.6 g/cm 3 .
8. The golf club head of claim 7 , wherein said base layer is made out of titanium material.
9. The golf club head of claim 8 , wherein said base layer has a maximum thickness of less than about 0.50 mm, and said lightweight cover layer has a maximum thickness of less than about 0.30 mm.
10. The golf club head of claim 9 , wherein said base layer has a maximum thickness of less than about 0.40 mm, and said lightweight cover layer has a maximum thickness of less than about 0.25 mm.
11. The golf club head of claim 10 , wherein said base layer has a maximum thickness of less than about 0.35 mm, and said lightweight cover layer has a maximum thickness of less than about 0.20 mm.
12. A golf club head comprising:
a striking face portion located at a frontal portion of said golf club head; and
a body portion attached to an aft portion of said striking face portion further comprising a crown portion and a sole portion;
wherein at least one of said crown portion and said sole portion further comprises a base layer and a lightweight cover layer;
said base layer further comprises a plurality of cutouts, and
said lightweight cover layer has an Internal Exposure Percentage of between about 25% to about 45%, and
wherein said base layer has a maximum thickness of less than about 0.50 mm, and said lightweight cover layer has a maximum thickness of less than about 0.30 mm.
13. The golf club head of claim 12 , wherein said plurality of cutouts is substantially circular in shape.
14. The golf club head of claim 12 , wherein only said crown portion further comprises said base layer and a lightweight cover layer.
15. The golf club head of claim 12 , wherein both said crown portion and said sole portion further comprises a base layer and said lightweight cover layer.
16. The golf club head of claim 12 , wherein said body portion further comprises a bridge member, attached to a central portion rearward of said striking face portion, separating a sole side and a heel side of said golf club head.
17. The golf club head of claim 12 , wherein said base layer is made out of a material with a density of between about 4.1 g/cm 3 and about 4.6 g/cm 3 .
18. The golf club head of claim 17 , wherein said lightweight cover layer is made out of a material with a density of less than about 1.70 g/cm 3 .