Golf club head processing method and golf club head

Abstract

This invention provides a golf club head processing method of performing blast processing on a face surface on which a scoreline is formed. The processing method according to this invention includes the steps of filling the scoreline with a masking material before the blast processing, and removing the masking material from the scoreline after the blast processing.

1 . A golf club head processing method of performing blast processing on a face surface on which a scoreline is formed, comprising the steps of:
 filling the scoreline with a masking material before the blast processing; and   removing the masking material from the scoreline after the blast processing.   
     
     
         2 . The method according to  claim 1 , wherein the masking material includes wax. 
     
     
         3 . The method according to  claim 1 , wherein a roughness of the face surface after the blast processing corresponds to an arithmetic average roughness of 0.5 μm (inclusive) to 4.0 μm (inclusive). 
     
     
         4 . A golf club head having undergone a processing method defined in  claim 1 . 
     
     
         5 . A golf club head having undergone blast processing on a face surface thereof on which a scoreline is formed, wherein
 an edge of the scoreline has a trace of the blast processing, while an inner wall of the scoreline has no trace of the blast processing.