An iron-type golf club head comprising a topline, a sole in opposed relation to the topline, and a front portion extending from the topline toward the sole. The front portion includes a leading edge, a substantially planar hitting region including a face center, and a peripheral region. The peripheral region at least partially surrounds the hitting region such that the hitting region and the peripheral region define therebetween a visually-recognizable hitting region boundary line including a sole-proximate boundary line segment such that when the club head is oriented in a reference position relative to a virtual ground plane, and in a virtual vertical plane perpendicular to the hitting region and passing through the face center, the sole-proximate boundary line segment is vertically spaced above the leading edge by a distance D1 that is no less than 2.5 mm.

A ball striking device, such as a golf club head, includes a face having a ball striking surface, an inner surface opposite the ball striking surface, and a thickness defined between the ball striking surface and the inner surface, and a body connected to the face and extending rearward from the face. The face has a modulus gradient across the thickness of the face, such that the modulus of the face varies at different distances from the ball striking surface. The face may also include at least one of an insert, a composite material, a multi-layered structure, and/or a portion treated by a surface treatment to contribute to the modulus gradient.

A golf club head has a main body including a top portion, a bottom portion opposite the top portion, a striking face, a rear portion opposite the striking face. The striking face has a striking face plane and a striking face outer periphery that is coplanar with the striking face plane. The striking face outer periphery has an outer periphery heel portion, an outer periphery toe portion opposite the outer periphery heel portion, an outer periphery top portion, and an outer periphery bottom portion opposite the outer periphery top portion. The striking face also has a recess extending rearward from the striking face plane, and the recess includes a recess periphery coplanar with the striking face plane. The striking face further has an insert disposed within the recess. The striking face additionally has a minimum periphery width separating the striking face outer periphery and the recess periphery. The periphery width is no greater than 1.25 mm.

A golf club head includes a front body and a rear body coupled to the front body to define a hollow cavity therebetween. The front body includes a strike face that defines a ball striking surface, a hosel, and a frame that at least partially surrounds the strikeface and extends rearward from a perimeter of the strikeface away from the ball striking surface. The strike face and frame are formed from a thermoplastic composite comprising a thermoplastic polymer having a plurality of discontinuous fibers embedded therein. Each of the plurality of discontinuous fibers have a length of less than about 40 mm. The specific gravity of the thermoplastic can range between 1.0 and 2.0. In some embodiments, the thermoplastic composite is 20% to 70% fibers by volume.

Embodiments of golf club face plates with internal cell lattices are presented herein. Other examples and related methods are also disclosed herein.

Embodiments of golf club heads and methods to manufacture such a golf club heads are generally described herein. In some embodiments, the golf club head may include a ball-striking face and a protective aluminum oxide layer coupled to the ball-striking face of the golf club head. The protective aluminum oxide layer is associated with a hardness that is greater than that of the ball-striking face. In further embodiments, golf club heads may include a top portion and at least one of a plurality of interchangeable alignment indicia coupled thereto, which are configured to guide the golf club head relative to a golf ball.

A golf club comprises a shaft, a club head, and a connection assembly that allows the shaft to be easily disconnected from the club head. In particular embodiments, the connection assembly includes a removable hosel sleeve that allows a shaft to be supported a desired predetermined orientation relative to the club head. In this manner, the shaft loft and/or lie angle of the club can be adjusted without resorting to traditional bending of the shaft. In another embodiment, the club head has an adjustable sole that can be adjusted upwardly and downwardly relative to the strike face of the club head, which is effective to adjust the face angle of the club head.

The invention is a golf club head with a ball striking face including a plurality of recesses, a plurality of first grooves, and a plurality of second grooves that extend between a heel edge and a toe edge of the club head. The ball striking face includes a first material, for example a metal material, and the plurality of recesses are filled with a fill material, for example a polymer material. The depth of the grooves, the height of the grooves, the fill material, and the positioning of the grooves can all affect the performance of the club head. In some embodiments, the club head is a putter-type club head.

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 having an interior cavity and a front portion, and a face portion attached to the front portion of the body portion to enclose the interior cavity. The face portion may include a face pocket portion having an opening defining a face cavity, and a face plate portion covering the opening to close the face cavity. The golf club head also includes a first filler material at least partially filling the interior cavity, and a second filler material at least partially filling the face cavity. The first filler material and the second filler material may be separated by one or more walls of the face pocket portion. Other examples and embodiments may be described and claimed.

The present disclosure relates to methods for forming a golf club head assembly comprising a golf club head body and a high strength faceplate. The high strength faceplate can be heat treated. After welding the faceplate to the club head body, vibrational waves can be used to relive stress in the weld heat affected zones of the golf club body and faceplate.