Method of manufacturing a composite golf club head

A method for manufacture of a hollow complex three-dimensional fiber golf club head having at least one hole, the method comprising;

• shaping a meltable core in the general form of the golf club head,
• placing a flexible pressurizable bladder around the core,
• wrapping over the assembly of core and bladder at least one ply of fiber impregnated with a curable resin,
• forming a cured part by pressurizing the bladder while the assembly of core, bladder, and impregnated fiber is in a mold to force the plies against the inner surfaces of the mold, such that compaction of the fiber against the inner surfaces of the mold is from the pressurization of the bladder and not from the core, and heating to cure the resin
• removing the bladder and the meltable core from the interior of the cured part by first melting and removing core sufficient to allow removal of the bladder.

A method for manufacture of a hollow complex three-dimensional fiber golf club head having at least one hole, the method comprising;

• shaping a fluid-removable core in the general form of the golf club head,
• placing a flexible pressurizable bladder around the core,
• wrapping over the assembly of core and bladder at least one ply of fiber impregnated with a curable resin,
• forming a cured part by pressurizing the bladder while the assembly of core, bladder, and impregnated fiber is in a female mold to force the plies against the inner surfaces of the mold, such that compaction of the fiber against the inner surfaces of the mold is essentially from the pressurization of the bladder and not from the core, and heating to cure the resin,
• removing the bladder and the fluid-removable core from the interior of the cured part by first disintegrating and removing at least a portion of the fluid-removable core with a fluid sufficient to allow removal of the bladder.