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: Examples 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 sole portion with a set of weight ports. Each weight port may have a first section and a second section. Each weight portion from a first set of weight portions may be adhered to the first section of a corresponding weight port by epoxy. Each weight portion from a second set of weight portions may be fastened to the second section of a corresponding weight port. At least a portion of the weight portions of the first set of weight portions may be interchangeable. At least a portion of the weight portions of the second set of weight portions may interchangeable. 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 set of golf club heads includes a plurality of golf club heads with ach golf club head having a distinct loft angle ranging from 19.5° to 47°. Each golf club head produces a loudness as a result of striking a golf ball at a predetermined golf club head speed. The loudness is in sone units and is based on a sound pressure measurement performed at a predetermined sampling rate and taken for a fixed duration of time with a microphone placed directly above the golf ball at a fixed vertical distance. For a golf club head speed of 80 mph, the loudness of each golf club head ranges from 82.58 to 92.76 sones and is inversely related to loft angle. For a golf club head speed of 85 mph, the loudness of each golf club head ranges from 86.85 to 97.07 sones and is inversely related to loft angle. For a golf club head speed of 90 mph, the loudness of each of golf club head ranges from 92.90 to 101.

Abstract: 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 an interior cavity, a port connected to the interior cavity, a toe portion, a heel portion, a top portion, a sole portion, a back portion, a port, and a front portion having a perimeter ledge portion defining at least a portion of an outer boundary of the front portion. The example golf club head may also include a face portion having a front surface with at least one groove and a back surface opposite the front surface and associated with a total back surface area. The back surface may include a first back surface region associated with a first back surface area and a second back surface region associated with a second back surface area. The total back surface area may equal to the sum of the first back surface area and the second back surface area.

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 includes a body portion and a face portion. The body portion includes an interior cavity having a lower cavity portion extending from a location proximate to a sole portion edge of the body portion toward a top portion edge of the body portion and an upper cavity portion extending from a location proximate to the top portion edge toward the sole portion edge. The face portion includes a front surface and a back surface. A filler material in the interior cavity includes a lower filler portion in the lower cavity portion and an upper filler portion in the upper cavity portion.

Abstract: 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 toe portion, a heel portion, a top portion, a bottom portion, a rear portion, a first interior cavity portion, and a second interior cavity portion. The second interior cavity portion may include a filler material. Other examples and embodiments 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 may include a body portion having an interior cavity, a toe portion, a heel portion, a front portion, a back portion, a top portion, and a sole portion. The body portion may include a ledge portion that extends from an upper back wall portion to a lower back wall portion of the back portion. The golf club head may include a face portion coupled to the front portion to close the interior cavity, a port on the body portion, a polymer material in the interior cavity, and a mass portion. A width of the ledge portion may be greater than a width of the body portion above a horizontal midplane of the body portion. A distance between a portion of the polymer material in the interior cavity and the face portion at a location vertically above the mass portion and below the ledge portion may be greater than a distance between the mass portion and the face portion.

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.