Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion having a front portion, a rear portion, a toe portion, a heel portion, a bottom portion, a top portion, and a lightweight crown portion covering an opening in the top portion. The crown portion may include two or more integral ribs to stiffen the crown portion. The crown portion may be a composite crown portion formed in a mold by applying heat and pressure. Other examples and embodiments may be described and claimed.

A golf club putter includes a head having an insert including face and base portions that interface with each other and are made of materials with dissimilar moduli of elasticity. The face portion can be a polymer and the base portion can be a metal. The face portion has a front facing surface that strikes the golf ball and an opposing rear surface with a smooth curved or stepped angled profile. The base portion has a front surface that interfaces with the rear surface of the face portion and is curved or stepped similar to the face portion. The front-to-back dimension of the face portion is thinnest at the center of the club head, and its thickness progressively increases as the curve of the rear surface of the face portion moves away from the club head center towards the heel and toe of the club head.

In one embodiment the golf club head includes three main components, a frame component, a rear cap component, and a striking plate. In another embodiment the club head may also comprise a front component, which is manufactured as a single unitary piece, and a rear cap component. The front component may also be overmolded by a thermoplastic polymeric outer portion which may or may not cover the striking face and which provides additional reinforcement at the load bearing sections of the club head and allows a more facile connection to the rear cap component. In another embodiment, a club head having a main body, crown insert, sole insert and metal face plate frame is formed by forming the sole insert and crown insert from a polymeric material using a thermoforming or thermosetting process and then injection molding the main body over the sole insert, crown insert and metal face plate frame.

Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a body portion with an interior cavity and a face portion attached to the body portion to enclose the interior cavity. The golf club head also includes a filler material in the interior cavity and attached to the back surface of the face portion. The golf club head also includes an internal mass portion in the interior cavity spaced apart from the body portion and attached to the filler material. The filler material may be located between the face portion and the internal mass portion. The internal mass portion may be movable in the interior cavity relative to the body portion and the face portion. Other examples and embodiments may be described and claimed.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head includes a body portion having a front portion, a rear portion, a toe portion, a heel portion, a bottom portion, an interior cavity, and a top portion having an opening to the interior cavity. The golf club head also includes a crown portion attached to the top portion and covering the opening in the top portion and enclosing the interior cavity. The crown portion may include an inner composite layer defining an inner surface of the crown portion, an outer composite layer defining an outer surface of the crown portion, and an inner crown portion layer attached to the inner surface. The inner crown portion layer is configured to dampen vibration of the golf club head. Other examples and embodiments may be described and claimed.

A golf club head includes a striking face having a face center and a virtual striking face plane generally parallel to the striking face. The golf club head further includes a sole portion, a top portion, a rear portion, and a loft L no less than 40°. A virtual vertical plane perpendicular to the striking face plane passes through the face center. A club head center of gravity is spaced from the virtual vertical plane in the heel-to-toe direction by a distance D1 that is no greater than 6.0 mm. The golf club head further includes a hosel including an internal bore configured to receive a golf shaft. The internal bore includes a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf club shaft. The hosel further comprises an auxiliary recess extending sole-ward from the abutment surface of the internal bore.

Described herein are embodiments of golf club heads having a balance of the following parameters: a low and back club head center of gravity position, a high moment of inertia, a large Ixy product of inertia, and low aerodynamic drag. Methods of manufacturing the embodiments of golf club heads having a balance of club head center of gravity position, moment of inertia, product of inertia, and aerodynamic drag are also described herein.

A golf club head includes a golf club head main body having a toe, a heel opposite the toe, a sole, and a top portion opposite the sole. The golf club head further includes a striking face having a face center. The striking face includes a central region including the face center, a first average thickness, and a variable thickness. An upper region above the central region has a second average thickness and a toe region toe-ward of the central region has a third average thickness. An intermediate region at least partially surrounds the central region and is disposed between the central region and each of the upper region and the toe region. The intermediate region has a fourth average thickness that is greater than the first average thickness, the second average thickness, and the third average thickness.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a toe portion, a top portion, a sole portion, and a back portion. The back portion may be include a back wall portion. The golf club head may also include a face portion, an interior cavity, at least one weight portion, and at least one port. The interior cavity may be partially or entirely filled with a polymer material. Other examples and embodiments may be described and claimed.

A golf club head having a multi-layered striking face is disclosed herein. More specifically, the golf club head in accordance with the present invention has an external frontal face layer, an internal rear face layer, and an intermediary sandwiched face layer juxtaposed between the external frontal face layer and the internal rear face layer. The intermediary sandwiched face layer may generally be made out of a high flexural modulus polymeric material.