Multiple layered face for a golf club head
A golf club head having a multiple layered face is disclosed herein. The face comprises a first layer, a second layer and a third layer. The first layer is composed of a titanium alloy material. The second layer is composed of a polyurea material. The third layer is composed of a composite material. The face has a total thickness ranging from 0.030 inch to 0.500 inch.
1 . A wood-type golf club head comprising:
a body defining a hollow interior, the body having a front opening;
a face attached over the front opening of the body, the face comprising
a first layer composed of a metal material, the first layer having a thickness ranging from 0.020 inch to 0.200 inch,
a second layer attached to an internal surface of the first layer, the second layer composed of a polyurea material, the second layer having a thickness ranging from 0.003 inch to 0.150 inch,
a third layer attached to an internal surface of the second layer, the third layer composed of a composite material, the third layer having a thickness ranging from 0.005 inch to 0.150 inch, wherein a rear surface of the third layer further defines the hollow interior of the body;
wherein the face has a total thickness ranging from 0.030 inch to 0.500 inch;
wherein the face has a specific modulus of greater than 24E6 m{circumflex over ( )}2 s{circumflex over ( )}−2.
2 . The golf club head according to claim 1 wherein the golf club head has a COR of at least 0.84.
3 . The golf club head according to claim 1 wherein the golf club head has a characteristic time value of at least 270.
4 . The golf club head according to claim 1 wherein the face has a plastic strain capacity of 1-25%.
5 . The golf club head according to claim 1 wherein the first layer has a variable face thickness.
6 . The golf club head according to claim 1 wherein the first layer is composed of a titanium alloy material.
7 . The golf club head according to claim 1 wherein the first layer is composed of an iron alloy material.
8 . The golf club head according to claim 1 wherein the body is composed of metal and composite.
9 . The golf club head according to claim 1 wherein the body comprises a sole portion, a crown portion and a front wall with a hole for placement of the face therein.
10 . A golf club head comprising:
a body comprising a crown section, a sole section and a face component having a front opening and having an attached frame, wherein the body defines a hollow interior, wherein the face component is composed of a titanium alloy, wherein the crown section and the sole section are each composed of a composite material;
a face attached over the front opening of the face component of the body, the face comprising
a front plate composed of a titanium alloy material, the front plate having a thickness ranging from 0.08 inch to 0.15 inch, the front plate welded to the face component,
a polyurea layer applied to an internal surface of the front plate, the polyurea layer having a thickness ranging from 0.005 inch to 0.02 inch,
a rear layer placed on an internal surface of the polyurea layer, the rear layer composed of a carbon fiber material, the rear layer having a thickness ranging from 0.022 inch to 0.08 inch, wherein a rear surface of the rear layer further defines the hollow interior of the body;
wherein the face has a specific modulus of greater than 24E6 m{circumflex over ( )}2 s{circumflex over ( )}−2.
11 . The golf club head according to claim 10 wherein the golf club head has a COR of at least 0.84.
12 . The golf club head according to claim 10 wherein the golf club head has a characteristic time value of at least 270.
13 . The golf club head according to claim 10 wherein the face has a plastic strain capacity of 1-25%.
14 . The golf club head according to claim 10 wherein the first layer front plate has a variable face thickness.
15 . A golf club head comprising:
a body comprising a crown section, a sole section and a face component having a front opening and having an attached frame, wherein the body defines a hollow interior, wherein the face component is composed of a titanium alloy, wherein the crown section and the sole section are each composed of a composite material;
a face attached over the front opening of the face component of the body, the face comprising
a first layer composed of a metal material, the first layer having a thickness ranging from 0.025 inch to 0.150 inch,
a second layer attached to an internal surface of the first layer, the second layer composed of a polyurea material, the second layer having a thickness ranging from 0.005 inch to 0.050 inch,
a third layer attached to an internal surface of the second layer, the third layer composed of a composite material, the third layer having a thickness ranging from 0.010 inch to 0.050 inch, wherein a rear surface of the third layer further defines the hollow interior of the body;
wherein the face has a total thickness ranging from 0.040 inch to 0.250 inch;
wherein the face has a specific modulus of greater than 24E6 m{circumflex over ( )}2 s{circumflex over ( )}−2.
16 . The golf club head according to claim 15 wherein the golf club head has a COR of at least 0.84.
17 . The golf club head according to claim 15 wherein the golf club head has a characteristic time value of at least 270.