Abstract: A method for manufacturing a striking plate of a golf club head includes the steps of: a sewing step, in which at least one roving material is sewn onto a base material so as to form a laminate blank with an uneven thickness in a normal direction of the base material; and a forming step, in which the laminate blank is placed in a mold cavity of a mold and is formed into the striking plate with an uneven thickness.

Abstract: A method for manufacturing a striking plate of a golf club head includes the steps of: a sewing step, in which at least one roving material is sewn onto a base material so as to form a laminate blank with an uneven thickness in a normal direction of the base material; and a forming step, in which the laminate blank is placed in a mold cavity of a mold and is formed into the striking plate with an uneven thickness.

Abstract: A method for making a molded composite includes the steps of providing a lower mold that has an upward depressed surface having first and second surface regions and an interconnecting region, placing a mold release film on the upward depressed surface to cover at least the first and second surface regions and the interconnecting region, placing a molding material on the mold release film such that the mold release film is disposed between the upward depressed surface and the molding material, and hot pressing the molding material by pressing a downward pressing region of an upper mold toward the upward depressed region of the lower mold so as to form the molding material into a molded composite.

Abstract: A process for manufacturing a golf club head includes steps of: placing a patterned release film on a lower mold half, making the patterned release film intimately contact an upward pressed region of the lower mold half, laminating a carbon fiber composite sheet on the patterned release film to form a laminate, hot-pressing the laminate by pressing a downward pressing region of an upper mold half toward the upward pressed region of the lower mold half to thereby form a decorative piece, and fitting the decorative piece into a depressed region of a club head body to obtain the golf club head.

Abstract: A process for manufacturing a golf club head includes steps of: placing a patterned release film on a lower mold half, making the patterned release film intimately contact an upward pressed region of the lower mold half, laminating a carbon fiber composite sheet on the patterned release film to form a laminate, hot-pressing the laminate by pressing a downward pressing region of an upper mold half toward the upward pressed region of the lower mold half to thereby form a decorative piece, and fitting the decorative piece into a depressed region of a club head body to obtain the golf club head.

Abstract: A method for manufacturing a striking plate for a golf club head includes the steps of: providing a metal blank plate having a surface which includes a plurality of first machining zones displaced from each other by a corresponding one of a plurality of second machining zones, machining the first machining zones of the metal blank plate using a precise electrochemical machining device, and machining the second machining zones using the precise electrochemical machining device.

Abstract: A striking plate for a golf club head includes a striking surface, a plurality of parallel linear grooves, and a plurality of protrusions. The parallel linear grooves are formed in the striking surface and are spaced apart from one another by a predetermined distance. The protrusions are formed on the striking surface, extend between two adjacent ones of the linear grooves, and are spaced apart from each other.

Abstract: A golf club head includes a head body formed with a cavity, and a counterweight unit fitted in the cavity and including a sleeve body and an insert body. The sleeve body has a first end face, a second end face, first and second cavities, and first and second inner walls. The first inner wall has at least one first corner. The second inner wall has at least one second corner out of alignment with the first corner. The sleeve body further has at least one shoulder face formed at a junction of the first and second cavities. The insert body includes an insert portion removably inserted into the sleeve body, and an abutting portion extending outward from the sleeve body and abutting against the first end face. The insert portion has at least one flange engaging the second corner and having a stop face abutting against the shoulder face.

Abstract: A golf club head includes a head body formed with a cavity, and a counterweight unit fitted in the cavity and including a sleeve body and an insert body. The sleeve body has a first end face, a second end face, first and second cavities, and first and second inner walls. The first inner wall has at least one first corner. The second inner wall has at least one second corner out of alignment with the first corner. The sleeve body further has at least one shoulder face formed at a junction of the first and second cavities. The insert body includes an insert portion removably inserted into the sleeve body, and an abutting portion extending outward from the sleeve body and abutting against the first end face. The insert portion has at least one flange engaging the second corner and having a stop face abutting against the shoulder face.

Abstract: A golf club head includes a hollow head body, a metal plate, and a compression resistant plate. The hollow head body is formed with an opening. The metal plate is fixed to the hollow head body, covers the opening, and has a thickness ranging from 0.1 to 0.5 mm. The compression resistant plate is bonded to an inner surface of the metal plate and spans the opening.

Abstract: A golf club head includes a hollow head body, a metal plate, and a compression resistant plate. The hollow head body is formed with an opening. The metal plate is fixed to the hollow head body, covers the opening, and has a thickness ranging from 0.1 to 0.5 mm. The compression resistant plate is bonded to an inner surface of the metal plate and spans the opening.