Golf club head having a multi-material face
View Patent ↗A golf club head with a multi-material face is disclosed herein. The layers of the multi-material face are preferably attached to the club head using adhesive and mechanical methods.
1. A golf club head comprising a face and a body portion, the face comprising:
an outer layer at least partially formed from a titanium material having a density of from about 4.0 g/cm 3 to about 5.00 g/cm 3 and having a plurality of male fasteners projecting from an inner surface thereof;
a lightweight layer penetrated by the plurality of male fasteners and having a thickness of greater than about 0.2 mm and less than about 2.0 mm and at least partially formed from a composite material having a density of 1.70 g/cm 3 or less;
an additional layer penetrated by the plurality of male fasteners; and
a plurality of female fasteners, each female fastener affixed to one of the male fasteners.
2. The golf club head of claim 1 , wherein the face additionally comprises an adhesive coating disposed between the outer layer and the lightweight layer.
3. The golf club head of claim 1 , wherein the face is adhesively connected to the body portion.
4. The golf club head of claim 1 , wherein the male fasteners are formed from a material selected from the group consisting of titanium, aluminum, and composites.
5. The golf club head of claim 1 , wherein the male fasteners are friction welded to the inner surface of the outer layer.
6. The golf club head of claim 1 , wherein at least one of the male fasteners extends to the outer surface of the outer layer.