TW239085B - Production process for composite golf head - Google Patents

Abstract

A production process for composite golf head, in which a material which is light and has high hardness and melting point is used to produce a striking plate and the striking plate is combined with a material which is suitable for fine casting and has lower melting point than the striking plate to form the composite golf head, the process comprises: (a) forming the striking plate: using a material which is light and has high hardness to form the striking plate, in which the periphery of the striking plate has a connection part and center of it is installed with pre-determined number of holes; (b) wax-injection processing: inserting the striking plate in a wax-injection mold, fixing the striking plate by inserting pins through the holes on the striking plate, injecting wax into the mold to form a wax article and covering the inside and connection part of the striking plate with wax; (c) immersion processing: immersing the wax article into a slurry to undergo coating of slurry on the wax article, in which the holes of the striking plate are filled with the slurry and the striking plate is fixed thereby; after drying the wax is removed by melting and the dried slurry forms a shell mold encompassing the striking plate; (d) formation of primary molding: infusing molten casting material into the shell mold to undergo casting, after cooling the inside and connection part are covered by the casting material to form one body; a primary molding of golf head is formed after the removal of the shell mold and going through heat treatment, adhesion of bottom plate and grinding; (e) formation of the golf head: completing the golf head by locking the holes of primary molding, grinding, injecting foam material and surface coating.