Manufacturing method for a golf club head

Abstract

A manufacturing method for a golf club head includes the steps of: prefabricating a main-body wax pattern and a striking-plate wax pattern, the main-body wax pattern providing with a rear opening and the striking-plate wax pattern providing with a stepped portion; initially combining the main-body wax pattern with the striking-plate wax pattern that remains an adhesive-filling groove between the rear opening of the main-body wax pattern and the stepped portion of the striking-plate wax pattern; filling adhesive into the adhesive-filling groove to constitute a combination member of the main-body wax pattern and the striking-plate wax pattern; immersing the combination member in slurry to form a ceramic shell and heating the ceramic shell for lost-wax processing; and pouring a melting alloy into the ceramic shell to form a club head casting.

1 . A manufacturing method for a golf club head comprising the steps of: 
 prefabricating a main-body wax pattern and a striking-plate wax pattern, the main-body wax pattern providing with a rear opening and the striking-plate wax pattern providing with a stepped portion;    initially combining the main-body wax pattern with the striking-plate wax pattern, and remaining an adhesive-filling groove between the rear opening of the main-body wax pattern and the stepped portion of the striking-plate wax pattern;    filling adhesive into the adhesive-filling groove to constitute a wax club head of the main-body wax pattern and the striking-plate wax pattern;    immersing the combination member in slurry to form a ceramic shell, and heating the ceramic shell for lost-wax processing; and    pouring a melting alloy into the ceramic shell to form a club head casting.    
   
   
       2 . The manufacturing method for the golf club head as defined in  claim 1 , wherein material of the adhesive has high fluidity and selected from a group consisting of wax liquid, resin, silicone, hot melt glue, methyl cyanoacrylate, ethyl cyanoacrylate, other suitable adhesive and a mixture thereof.  
   
   
       3 . The manufacturing method for the golf club head as defined in  claim 1 , wherein the rear opening of the main-body wax pattern connects a rear side to a front side; the rear opening includes a front stepped portion proximate the front side for receiving the striking-plate wax pattern.  
   
   
       4 . The manufacturing method for the golf club head as defined in  claim 1 , wherein the main-body wax pattern has a front rim adapted to connect with the stepped portion of the striking-plate wax pattern.  
   
   
       5 . The manufacturing method for the golf club head as defined in  claim 1 , wherein the adhesive-filling groove is filled with a hardened adhesive having a thickness slightly smaller than a depth of the adhesive-filling groove.  
   
   
       6 . The manufacturing method for the golf club head as defined in  claim 5 , wherein the club head casting consists of a striking plate, a rear recession and an annular channel; the annular channel located at a connection boundary of the rear surface and the rear recession.  
   
   
       7 . The manufacturing method for the golf club head as defined in  claim 1 , wherein the adhesive-filling groove is filled with a hardened adhesive having a thickness substantially equal to a depth of the adhesive-filling groove.  
   
   
       8 . The manufacturing method for the golf club head as defined in  claim 1 , further employing an organic solvent to dissolve the adhesive material for removing it from the ceramic shell.  
   
   
       9 . The manufacturing method for the golf club head as defined in  claim 1 , wherein the adhesive-filling groove may face an orientation parallel to a longitudinal axis of the rear opening for conveniently filling adhesive therethrough.