Abstract: A method of making a wax mold for a golf club head includes the steps of: a) positioning a male die in a cavity of a female die; b) injecting and filling dissolvable wax into a gap between an outer surface of the male die and an inner surface of the female die; c) cooling and solidifying the dissolvable wax in the gap to obtain a wax shell; d) removing the wax shell from the male die and the female die, the wax shell being provided with a hole extending through inner and outer surfaces of the wax shell; and e) inserting a wax plug into the hole to form the wax mold.

Abstract: A method of making a wax mold for a golf club head includes the steps of: a) positioning a male die in a cavity of a female die; b) injecting and filling dissolvable wax into a gap between an outer surface of the male die and an inner surface of the female die; c) cooling and solidifying the dissolvable wax in the gap to obtain a wax shell; d) removing the wax shell from the male die and the female die, the wax shell being provided with a hole extending through inner and outer surfaces of the wax shell; and e) inserting a wax plug into the hole to form the wax mold.

Abstract: A method of making a golf club head includes the steps of: preparing a head body formed with at least one cavity, and at least one flange protruding from the head body and proximate to the cavity; mounting a counterweight unit in the cavity; bending the flange toward the cavity and pressing the flange against the counterweight unit; joining the counterweight unit to the head body using a solder; and polishing the head body and the counterweight unit to remove excess of the flange and the solder.

Abstract: A method of making a golf club head includes the steps of: preparing a head body including a front engaging face, a back face, an opening extending through the front engaging face and the back face, a groove extending around the opening and recessed inwardly from the front engaging face, a peripheral edge surrounding the groove, and at least one flange extending along the peripheral edge and protruding away from the front engaging face; mounting a striking plate on the front engaging face to cover the opening; bending the flange toward the striking plate and pressing the flange against the striking plate; joining the striking plate to the head body using a solder; and polishing the head body and the striking plate to remove excess of the flange and the solder.

Abstract: A golf club head for an iron includes a back part, a striking plate covering the back part, and a fixing unit to join the striking plate and the back part. The fixing unit has a looped groove provided between the striking plate and the back part, and a welding material interconnecting the striking plate and the back part and filled in the looped groove.

Abstract: A golf club head includes a head body and a striking plate. The head body has a front open end, and a limiting rib projecting inwardly from an inner wall face of the head body and proximate to the front open end. The limiting rib has two opposite first rib sections, and two opposite second rib sections interconnecting the first rib sections. Each second rib section has a thickness smaller than that of each first rib section. The striking plate covers the front open end, and abuts against front sides of the first and second rib sections. The striking plate has a sweet spot closer to the first rib sections than the second rib sections.