Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an interior structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the interior structure of the cavity. A space between the insert portion and the interior structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Abstract: 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.

Abstract: Examples of golf clubs and methods to manufacture golf clubs are generally described herein. In one example, a golf club may include a golf club head, a hosel portion, and a shaft. The hosel portion may be positioned rearward of a center of gravity of the body portion. The shaft portion may be coupled to the hosel portion and may have a first shaft portion and a second shaft portion. The first shaft portion may extend from the hosel portion and tilt toward the face portion with no lateral tilt toward a toe portion or a heel portion of the body portion. The second shaft portion may extend from the first shaft portion toward the heel portion and toward a face portion of the body portion. Other examples of golf club heads and methods to manufacture the same may be described and claimed.

Abstract: Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are described herein. In one example, a golf club head includes a body portion having an interior cavity, a back opening portion, a back cover portion covering the back opening portion, a filler material at least partially filling the interior cavity, a first mass portion coupled to the back cover portion, and a second mass portion coupled to the back cover portion. The body portion may be made from a first material having a first density, and the back cover portion may be made from second material having a second density different from the first density. The diameter of the second mass portion may be greater than a diameter of the first mass portion. Other examples and embodiments may be described and claimed.

Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an internal structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the internal structure of the cavity. A space between the insert portion and the internal structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Abstract: 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 may include a body portion made from a first material with a first density and having an interior cavity, a toe portion with a toe portion edge, a heel portion with a heel portion edge, a front portion, a back portion with a back wall portion including a back opening portion, a top portion with a top portion edge, and a sole portion with a sole portion edge. A back cover portion made from second material with a second density different from the first density is coupled to the body portion to close the back opening portion. The back cover portion includes a port extending through the back cover portion. A filler material is injected into the interior cavity from the port. A mass portion is inserted into the port to close the port. The mass portion made from a third material with a second density greater than the first density.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a method of manufacturing a golf club head may include providing a golf club head having a face portion. The method may include determining a reference characteristic time value at a reference location on the face portion, determining a measured characteristic time value at each of a plurality of locations on the face portion, determining a differential characteristic time value at each of the plurality of locations, and altering a face thickness at a location where the differential characteristic time value is nonzero. Other examples and embodiments may be described and claimed.