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 having an interior cavity and a front portion. A face portion is attached to the front portion of the body portion to enclose the interior cavity. The golf club head may further include a first filler material coupled to a portion of an inner wall of the body portion, and a second filler material between the first filler material and the face portion and coupled to the face portion. The first filler material has a greater coefficient of restitution (COR) than the second filler material, and the second filler material has a greater stiffness than the first filler material. Other examples and embodiments may be described and claimed.

Abstract: Described herein is a golf club head that comprises a body and a face portion. The golf club head further comprises at least one stiffener, at least partially within the interior cavity and directly coupled to the face portion at a location with an x-axis coordinate, of a club head origin coordinate system of the golf club head, greater than 20 mm and less than 50 mm or greater than ?50 mm and less than ?20 mm.

Abstract: Disclosed herein is a golf club head. A face portion of the golf club head has a bulge radius between 190 mm and 600 mm and a roll radius between 100 mm and 600 mm. The golf club head further comprises a first wall, protruding uprightly from the sole portion, extending lengthwise in a heel-to-toe direction. The golf club head additionally comprises a stiffener located within the interior cavity of the body and interposed between the interior surface of the face portion and the first wall. The stiffener is made of a second material having a second modulus of elasticity less than the first modulus of elasticity. A coefficient of restitution (COR) of the golf club head is at least 0.78. A characteristic time (CT) of the golf club head at a center of the face portion is no more than 257 microseconds.

Abstract: 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.

Abstract: Embodiments of grooves of golf club heads and methods to manufacture grooves of golf club heads are generally described herein. Other 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 hollow body portion having a front portion, a rear portion, a toe portion, a heel portion, a bottom portion, a top portion, a first interior cavity portion, and a second interior cavity portion. The first interior cavity portion may be at least partially filled with a polymer material. Other examples and embodiments may be described and claimed.

Abstract: A golf club head including a face portion having an improved restitution factor is provided. The golf club head has a hollow structure and includes a face portion, a crown portion, a sole portion, and a side portion. The crown portion includes a first region that spreads out forward of a boundary line that extends from a heel side to a toe side, and a second region that spreads out rearward of the boundary line and is thinner than the first region. The crown portion further includes a protruding portion formed at position that is in a vicinity of the boundary line, is on the second region, and is rearward of the boundary line via a gap.

Abstract: A golf club head is described having a club head portion, a shaft portion connected to the club head portion, and a grip portion connected to the shaft portion. The club head portion has a heel portion, a sole portion, a toe portion, a crown portion, a hosel portion, and a striking face. The striking face has a center face roll contour, a toe side roll contour, a heel side roll contour, a center face bulge contour, a crown side bulge contour, and a sole side bulge contour. The toe side roll contour is more lofted than the center face roll contour. The heel side roll contour is less lofted than the center face roll contour. The crown side bulge contour is more open than the center face bulge contour, and the sole side bulge contour is more closed than the center face bulge contour.

Abstract: A golf club head comprises a sole, a recessed sole port in the sole; and a rotatably adjustable sole piece adapted to be at least partially received within the sole port and comprising a central body having a plurality of contact surfaces adapted to contact the sole port and being offset from each other along a central axis extending through the central body of the sole piece. The sole piece can be positioned at least partially within the sole port at five or more rotational and axial positions with respect to the central axis, wherein at each rotational position, at least one of said contact surfaces of the central body contacts the sole port to set the axial position of the sole piece. The sole port and/or the sole piece can be generally pentagonal in shape.

Abstract: A golf club head that includes a head upper portion, a head bottom portion and a face portion between the head upper portion and the head bottom portion is provided with a slit that is open in the head upper portion on a back side of the face portion, extends in a toe-heel direction and is formed toward the head bottom portion, an intermediate member configured to be provided in the slit and abut against a first wall surface on the face portion side that defines the slit, and a fixing member configured to fix the intermediate member from a side of a second wall surface on the back side that is separated from the first wall surface and defines the slit.

Abstract: A golf club head includes a first portion joined to a second portion to at least partially define an interior club head volume. The first portion includes a wall defining an outer boundary of the club head volume, and a support rib extending from the wall to operatively stiffen the first portion. The second portion of the golf club head can engage the support rib, and the support rib can be adhered to the second portion to join the first portion and the second portion.

Abstract: A resilient face insert for a golf club head, preferably a putter head, is disclosed herein. In particular, the face insert comprises a plurality of hinge features spaced from a striking surface to ensure consistent ball speed across the striking surface. At least a portion of each hinge feature extends parallel to the striking surface without making contact with the striking surface. In the preferred embodiment, each hinge feature comprises a tab portion that is spaced from the striking surface by a stem portion and that extends parallel to the striking surface. The hinge features may be co-molded with a polymeric backing material having a plurality of parallel grooves in order to further improve performance of the face insert.

Abstract: A golf club head having a flexible channel to improve the performance of the club head, and a channel tuning system to reduce undesirable club head characteristics introduced, or heightened, via the flexible channel. The channel tuning system includes a sole engaging channel tuning element in contact with the sole and the channel. The club head may include an aerodynamic configuration, as well as a body tuning system.

Abstract: A co-forged iron type golf club is disclosed. More specifically, the present invention discloses a co-forged iron type golf club with the body portion made out of a first material and at least one weight adjustment portion monolithically encased within the body portion of the co-forged iron type golf club head without the need for secondary attachment or machining operations. The present invention creates of an iron type golf club head from a pre-form billet that already contains two or more materials before the actual forging process resulting in a multi-material golf club head that doesn't require any post manufacturing operations such as machining, welding, swaging, gluing, and the like.

Abstract: A ball striking device, such as a golf club, includes a head that includes a face having a ball striking surface configured for striking a ball and a body connected to the face and extending rearward from the face. A face member formed primarily of a metallic material forms the face, and a body member is connected to the face member and extends rearward from the face member to form at least a portion of the body. The body member is formed at least partially of a polymer material, and has a doped portion containing a doping material dispersed within the polymer material. The doping material may have a different density than the polymer material, such that the doped portion has a different density than the portions of the body member not containing the doping material. A co-molding method may be used to form the ball striking device.

Abstract: A golf club head has a striking face. A ledge extends from the perimeter contact rim of the golf club head. The striking face is secured to the club head body proximate the rim. There is a gap between the striking face and the ledge. The inner wall's perimeter edge is disposed in the gap and is in contact with the ledge. The rear surface of the striking face is in contact with a portion of the inner wall.

Abstract: A golf club head includes a body and a face plate insert. The body includes an annular face support having a recessed shelf configured to receive the face plate insert, and partially defining a central cavity. The face plate insert includes a hitting surface and a rear surface that is opposite the hitting surface. The face plate insert is disposed within the annular face such that the rear surface of the face plate insert abuts the recessed shelf. The face plate insert includes a polymeric material that is disposed across the cavity and that has a tensile strength of at least about 220 MPa.

Abstract: A golf club head has a striking face. A ledge extends from the perimeter contact rim of the golf club head. The striking face is secured to the club head body proximate the rim. There is a gap between the striking face and the ledge. The inner wall's perimeter edge is disposed in the gap and is in contact with the ledge. The rear surface of the striking face is in contact with a portion of the inner wall. The sole of the golf club can be removable and provide a sole groove to allow the inner wall to be inserted behind the striking face.

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 first interior cavity portion and a second interior cavity portion. The first interior cavity portion may be located between the face portion and the second interior cavity portion. The first interior cavity portion may be at least partially filled with a polymer material. The polymer material may be coupled to the face portion. Other examples and embodiments may be described and claimed.

Abstract: An iron-type golf club head according to one or more aspects of the present disclosure may include a striking face, a rear surface opposite the striking face, and a perimeter weighting element at least partially surrounding the rear surface. The club head may further include a resilient component associated with the perimeter-weighting element, the resilient component including a recess, and a preload spacer associated with the rear surface, a portion of the preload spacer engaging the recess. At least a portion of the resilient component is compressed between the preload spacer and the perimeter weighting element.

Abstract: A head 2 includes: a face member fc1 having a hitting surface 4; and a body member bd1 having a hosel 6, a sole surface 8, and a toe-side surface 9. The face member fc1 further has a top-side flange FL1 including a top surface 5. The body member bd1 has a hosel-forming part 24 including the hosel 6, a sole-forming part 28 including the sole surface 8, and a toe-forming part 26 including the toe-side surface 9. The hosel-forming part 24 has a heel joint portion Jh joined to a heel-side end of the top-side flange FL1. The toe-forming part 26 has a toe joint portion Jt joined to a toe-side end of the top-side flange FL1. A body missing portion ms1 in which the body member bd1 is not present is provided between the toe joint portion Jt and the heel joint portion Jh.

Abstract: A putter-type golf club head includes a main body. The main body includes a forward end, a rearward end opposite the forward end, a bottom portion, a top portion opposite the bottom portion, and a male-type hosel component defining a longitudinal axis that is forwardly canted relative to vertical. A face component is secured to the forward end of the main body. The face component includes a first element formed of a resilient material and a second element formed of a rigid material that is secured to the first element. A striking face generally defines a virtual striking face plane and is at least partially formed by the face component.

Abstract: Embodiments of a golf club head and methods to manufacture such a golf club head are generally described herein. The golf club head generally includes at least one ball-striking face, which comprises a titanium alloy that is associated with an average grain size measuring no more than about 1 micron (?m) in the longest dimension. The golf club head is associated with a coefficient of restitution of about 0.847 or more when a ball impacts the ball-striking face.

Abstract: Golf clubs and golf club heads, such as iron heads, may include an iron body and a ball striking plate engaged with the iron body. The ball striking plate may include a face layer and a backing layer. The face layer of the ball striking plate may be formed of a metal material, while the backing layer may be formed of a polymeric material. The backing layer isolates the face layer from the iron body. In some arrangements, the backing layer of the insert may be visible at the top, the bottom, the side and/or the front surfaces of the iron head. Methods for making such iron devices are also described.

Abstract: A head 2 includes a face member fc1 formed by casting and a body member bd1 having an opening 20 on a hitting surface 4 side. The opening of the body member bd1 is covered by the face member fc1. The face member fc1 includes a flat plate portion PT forming the hitting surface 4 and a flange FL extending backward from a peripheral edge of the flat plate portion PT. The flange FL includes a first flange FL1 located in a top-side region, and a second flange FL2 located in a sole-side region. The flange FL is not provided in a toe-side region and a heel-side region. The flange FL is joined to the body member bd1.

Abstract: A hollow golf club head includes an inner surface and an outer surface, the golf club head further comprises a strike face operative to impact a golf ball, a body extending rearward from a perimeter of the strike face, and a flexure joint extending from the outer surface to the inner surface. The flexure joint includes a forward impact surface, a reaction surface in contact with the impact surface, and during an impact, the impact surface translates along the reaction surface to permit a controlled deflection of a portion of the strike face.

Abstract: The disclosure is directed to Zr and Hf bearing alloys that are capable of forming a metallic glass, and more particularly metallic glass rods with diameters at least 1 mm and as large as 5 mm or larger. The disclosure is further directed to Zr and Hf bearing alloys that demonstrate a favorable combination of glass forming ability, strength, toughness, bending ductility, and/or corrosion resistance.

Abstract: Some embodiments include club heads having reinforced club head faces. Other embodiments of related club heads and methods are also disclosed.

Abstract: The present disclosure relates to methods for forming a golf club head assembly using a combination of different, but separate heat treatments for the golf club head body and high strength faceplate, and vibrational waves to relive stress in the weld heat affected zones of the golf club body and face.

Abstract: A golf club head made out of multi-material is disclosed herein. More specifically, the golf club head in accordance with the present invention has at least a portion of the body of the golf club head that is further comprised out of a base layer and a lightweight cover layer. The base layer may have a plurality of cutouts to help reduce unnecessary mass and the lightweight cover layer may be made out of an ultra-lightweight material to further reduce the unnecessary mass. The resulting golf club head may generally have a deep CG wherein the CG-B location is about 37 mm, and a CG-C location is greater than about 30 mm.

Abstract: Some disclosed golf club heads include body having at least one raised sole portion and a cantilevered ledge extending down around a perimeter of the club head below the level of the raised sole portion. Some disclosed golf club heads include one or more sole openings in the body and a sole insert that is mounted inside the body over the sole openings. The sole can include weight tracks as well, and a rear weight track can extend between a toe side sole opening and a heel side sole opening. A crown insert can also be included that is mounted over an upper opening in the body.

Abstract: A golf club head including a plurality of face support tabs that are attached to an interior surface of the perimeter of a golf club head. The face support tabs are in contact with a rear surface of a striking face and, in some examples, are fastened to the rear surface of the striking face. Where the face support tabs are fastened to the rear surface of the striking face, the edges of the striking face are not directly fastened to the perimeter of the golf club head. Where the face support tabs are not secured to the rear surface of the striking face, the striking face is fastened to the perimeter of the club head body and the face support tabs are preloaded so as to exert a force against the rear surface of the striking face even when the striking face is in a neutral position.

Abstract: A golf club comprises a club head having a hosel, a shaft disposed within the hosel, a ferrule disposed about the shaft at a coupling between the shaft and the hosel, and a tagging device coupled to the ferrule. The tagging device can be at least partially disposed within the ferrule, and the tagging device can be a wireless communication device.

Abstract: A putter head includes: a striking face formed from a first material, the striking face including a central cavity; and an insert formed from a second material that is different from the first material, wherein the second material comprises animal bone, the insert including a front face and a back face, the back face fittingly engaged within the central cavity to align the front face with the face geometry surrounding the central cavity thereby establishing a continuous surface along the striking face.

Abstract: Described herein is a golf club head that includes a body with a sole portion, a crown portion, a skirt portion, a forward region, and a rearward region. The golf club head also includes a face portion including a striking face with a maximum height from the ground plane of at least about 50 mm. A volume of the golf club head is at least about 370 cm3. The golf club head has a total club head mass between 190 grams and 210 grams, and the mass of the club head located above half of the peak crown height is less than or equal to 77 grams, and the percentage of the mass above half of the peak crown height is less than or equal to 39% of the total mass of the golf club head.

Abstract: A golf club head includes a body and a face plate insert. The body includes an annular face support having a recessed shelf configured to receive the face plate insert, and partially defining a central cavity. The face plate insert includes a hitting surface and a rear surface that is opposite the hitting surface. The face plate insert is disposed within the annular face such that the rear surface of the face plate insert abuts the recessed shelf. The face plate insert includes a polymeric material that is disposed across the cavity and that has a tensile strength of at least about 220 MPa.

Abstract: 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.

Abstract: A head for a ball striking device includes a face having a striking surface and a rear side located behind the face, a rear member connected to the rear side of the face member and having a front surface confronting the rear side of the face member, and a resilient material separating the rear member from the face member, such that the resilient member engages the rear member and the face member and is configured to transfer momentum between the face member and the rear member.

Abstract: A head 2 includes a head body h1 and a face plate p1 fixed to the head body h1. The face plate p1 includes a plate front surface f1 having a hitting face, a plate back surface b1 which is a surface opposite to the plate front surface f1, and a plate side surface s1. The head body h1 includes an opening part to which the face plate is disposed, and a receiving surface u1 which supports the face plate p1 from back. The plate back surface b1 includes an outer peripheral edge part 16 having a circular shape. The outer peripheral edge part 16 includes a first portion x1 which abuts on the receiving surface u1, and a second portion which does not abut on the receiving surface u1 and forms a gap gp between the second portion and the receiving surface u1.

Abstract: An iron-type golf club head comprising a body with a striking face and a hollow cavity portion, a medallion, and a damping insert that is spaced from, and does not contact any portion of, the striking face is disclosed herein. The damping insert is trapped between the medallion and a support structure that extends from the body of the club head approximately parallel with the striking face, and is at least partially suspended over or in the cavity portion. The structure may be an elongated stiffening member that connects upper and lower portions of the body to one another, or a rectangular lip section. The damping insert is affixed to only one of the medallion and the structure with an adhesive material, and damps vibration in the striking face after the striking face makes contact with a golf ball, while the striking face is rebounding from impact.

Abstract: The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and significant tungsten weight members at the heel and toe.

Abstract: The present invention is directed to a golf club head comprising one or more center of gravity and bias adjustment features. In some embodiments, the golf club head comprises an elongated cartridge having one or more sockets or weight ports to receive weight plugs, the arrangement of which can be changed to adjust the mass properties of the golf club head. The orientation of the cartridge itself can also be reversed to adjust the mass properties. In other embodiments, the golf club head comprises at least one semicircular weight ring that extends around the rear portion of the golf club head, and is removable and replaceable to adjust the mass properties of the golf club head. In still other embodiments, these features are combined on one head.

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 first interior cavity portion, a toe portion, a heel portion, a top portion, a bottom portion, a rear portion, a front portion having a face portion, and a second interior cavity portion having an elastic polymer material. The body portion may include a plurality of ports located on the bottom portion. Other examples and embodiments may be described and claimed.

Abstract: A putter head having variable face thickness or multiple materials and adjustable weighting features is disclosed herein. The variable face thickness may comprise a plurality of geometric shapes on the striking face surface with spacing between them that decreases in a top to bottom direction, or the face may include a plurality of angled carbon rods. The putter also includes an adjustable weight cartridge that can pivot in a toe-heel direction.

Abstract: A ball striking device has a head with a body member having a face having a striking surface configured for striking a ball, a crown portion and a sole portion connected to the face and extending rearward from the face, where the body member has a void extending inwardly from a rear periphery of the body member, and a rear member connected to the body member and received within the void, such that the rear member forms portions of a crown and a sole of the head. A connection member connects the rear member to the body member to form a joint between the rear member and the body member. A resilient member separates the rear member from the body member, and the resilient member engages the rear member and the body member within the void and is configured to transfer momentum between the rear member and the body member.

Abstract: A method of forming a golf club head assembly includes aligning a faceplate with a recess of a club head; welding the faceplate to the club head; then, after welding the faceplate, heating the club head and the faceplate to at least a solvus temperature of the faceplate for a predetermined amount of time; and then, after heating the club head and the faceplate, allowing the club head and the faceplate to air cool.

Abstract: A method of forming a golf club head assembly includes aligning a faceplate with a recess of a club head; welding the faceplate to the club head; then, after welding the faceplate, heating the club head and the faceplate to at least a solvus temperature of the faceplate for a predetermined amount of time; and then, after heating the club head and the faceplate, allowing the club head and the faceplate to air cool.

Abstract: A head for a ball striking device includes a face having a striking surface and a rear side located behind the face, a rear member connected to the rear side of the face member and having a front surface confronting the rear side of the face member, and a resilient material separating the rear member from the face member, such that the resilient member engages the rear member and the face member and is configured to transfer momentum between the face member and the rear member. The face member has projections extending rearwardly from the rear side of the face member proximate the heel and toe sides of the head. The rear member has receivers in the front surface on the heel and toe sides of the head, where the projections are received in the corresponding receivers.

Abstract: Provided is a golf club head which produces an improved hitting sound obtained without impairing the appearance of the sole section. A golf club head having a hollow portion (i) formed therein has a sole portion (5) which forms the bottom surface of the head. The sole portion (5) includes a thin-wall portion (8) and a thick-wall portion (9) which has a greater thickness than the thin-wall portion (8). The golf club head is characterized in that a portion of the inner surface of the thick-wall portion (9), the portion facing the hollow section, has a rib (10) secured to the portion by welding.

Abstract: A computer program is disclosed for reconfiguring a property-adjustable golf club. The program receives data input corresponding to a current configuration of an adjustable feature of the golf club, and data input corresponding to trajectory adjustment information. Based on the data input, reconfiguration information is generated, and outputted, that corresponds to one of a plurality of configurations of the adjustable feature of the golf club.