Golf club head alloy and method for producing golf club head

Abstract

A golf club head alloy includes 7-8 wt % of aluminium, 2-3 wt % of molybdenum, 1.4-2.0 wt % of chromium, 0.5-1.1 wt % of vanadium, 0.35-1 wt % of silicon, with the balance being titanium and inevitable impurities. A method of using the golf club head alloy to produce a golf club head is also disclosed.

What is claimed is: 
     
         1 . A golf club head alloy comprising 7-8 wt % of aluminum, 2-3 wt % of molybdenum, 1.4-2.0 wt % of chromium, 0.5-1.1 wt % of vanadium, 0.35-1 wt % of silicon, with the balance being titanium and inevitable impurities. 
     
     
         2 . The golf club head alloy as claimed in  claim 1 , wherein the golf club head alloy comprises 2.2-2.8 wt % of molybdenum. 
     
     
         3 . The golf club head alloy as claimed in  claim 1 , wherein a phase tissue of the golf club head after ageing treatment includes 60-80% of α phase, 5-15% of β phase, and 15-26% of Ti 3 Al. 
     
     
         4 . A method for producing a golf club head, comprising:
 using the golf club head alloy set forth in  claim 1  to produce a golf c lib head; and   heating the golf club head for 0.5-1.5 hours at 400-700° C. to carry out an ageing treatment.   
     
     
         5 . The method for producing the golf club head as claimed in  claim 4 , wherein the golf club head is heated for 0.5-1.5 hours at 450-550° C. to carry out the ageing treatment. 
     
     
         6 . The method for producing the golf club head as claimed in  claim 4 , wherein the golf club head after the ageing treatment has a phase tissue including 60-80% of α phase, 5-15% of β phase, and 15-26% of Ti 3 Al. 
     
     
         7 . A method for producing a golf club head, comprising:
 using the golf club head alloy set forth in  claim 1  to produce a striking plate;   welding the striking plate to a club head body to form a golf club head; and   heating the golf club head for 0.5-1.5 hours at 400-700° C. to carry out an ageing treatment.   
     
     
         8 . The method for producing the golf club head as claimed in  claim 7 , wherein the golf club head is heated for 0.5-1.5 hours at 450-550° C. to carry out the ageing treatment. 
     
     
         9 . The method for producing the golf club head as claimed in  claim 7 , wherein the golf club head after the ageing treatment has a phase tissue including 60-80% of α phase, 5-15% of β phase, and 15-26% of Ti 3 Al.