Method of forming golf club head assembly

Abstract

A method of forming a golf club head assembly includes aligning a faceplate with a recess of a club head; welding the faceplate to the club head; then, after welding the faceplate, heating the club head and faceplate to at least a solvus temperature of the faceplate for a predetermined amount of time; and then, after heating the club head and faceplate, allowing the club head and faceplate to air cool.

1 . A golf club head comprising:
 a crown;   a sole opposite the crown;   a toe end,   a heel end opposite the toe end;   a recess positioned between the crown and the sole, and between the toe end and the heel end; and   a faceplate that is aligned with the recess and welded to a club head, the faceplate having a roll curvature positioned between the crown and the toe end, and the faceplate comprising an α-β titanium alloy;   wherein after the faceplate is welded to the club head, the club head and the faceplate are heated to a temperature that is greater than the solvus temperature of the faceplate for between 1 hour and 6 hours and the club head and faceplate are allowed to air cool.   
     
     
         2 . The golf club head of  claim 1 , where welding the faceplate includes a pulse plasma welding process. 
     
     
         3 . The golf club head of  claim 1 , wherein the club head and the faceplate are heated to a temperature between 400° C. and 630° C. 
     
     
         4 . The golf club head of  claim 1 , wherein the α-β titanium alloy comprises 6% aluminum, 4% vanadium, and the remaining alloy composition being titanium. 
     
     
         5 . The golf club head of  claim 1 , wherein the α-β titanium alloy comprises between 5.5% to 6.75% aluminum, 3.5% to 4.5% vanadium, 0.08% carbon, 0.03% silicon, 0.3% iron, 0.2% oxygen, 0.015% tin, trace amounts of molybdenum, and the remaining alloy composition being titanium. 
     
     
         6 . The golf club head of  claim 1 , wherein the α-β titanium alloy comprises 8% aluminum, 1% vanadium, 0.2% silicon, and the remaining alloy composition being titanium. 
     
     
         7 . The golf club head of  claim 1 , wherein the α-β titanium alloy comprises 6.5% to 8.5% aluminum, 1% to 2% vanadium, 0.08% carbon, 0.2% silicon, 0.3% iron, 0.2% oxygen, trace amounts of molybdenum, trace amounts of tin, and the remaining alloy composition being titanium. 
     
     
         8 . The golf club head of  claim 1 , wherein the α-β titanium alloy comprises 6% aluminum, 6% vanadium, 2% tin, and the remaining alloy composition being titanium. 
     
     
         9 . The golf club head of  claim 1 , wherein the α-β titanium alloy comprises 6% aluminum, 2% tin, 4% zirconium, 6% molybdenum, and the remaining alloy composition being titanium. 
     
     
         10 . The golf club head of  claim 1 , wherein the α-β titanium alloy comprises 6% aluminum, 2% tin, 4% molybdenum, 0.5% silicon, and the remaining alloy composition being titanium. 
     
     
         11 . A golf club head comprising:
 a crown;   a sole opposite the crown;   a toe end,   a heel end opposite the toe end;   a recess positioned between the crown and the sole, and between the toe end and the heel end; and   a faceplate that is aligned with the recess and welded to a club head, the faceplate having a roll curvature positioned between the crown and the toe end, and the faceplate comprising an α-β titanium alloy;   wherein after the faceplate is welded to the club head by pulse plasma welding, the club head and the faceplate are heated to a temperature that is greater than the solvus temperature of the faceplate between 400° C. and 630° C. for a predetermined amount of time and the club head and the faceplate are allowed to air cool.   
     
     
         12 . The golf club head of  claim 11 , wherein the club head and the faceplate are heated between 1 hour and 6 hours. 
     
     
         13 . The golf club head of  claim 11 , wherein the club head and the faceplate are heated between 4 hours to 6 hours. 
     
     
         14 . The golf club head of  claim 11 , wherein the club head and the faceplate are heated between 1 hour and 2 hours. 
     
     
         15 . The golf club head of  claim 11 , wherein the α-β titanium alloy comprises 6% aluminum, 6% vanadium, 2% tin, and the remaining alloy composition being titanium. 
     
     
         16 . The golf club head of  claim 11 , wherein the α-β titanium alloy comprises 6% aluminum, 2% tin, 4% zirconium, 6% molybdenum, and the remaining alloy composition being titanium. 
     
     
         17 . The golf club head of  claim 11 , wherein the α-β titanium alloy comprises 8% aluminum, 1% vanadium, 0.2% silicon, and the remaining alloy composition being titanium. 
     
     
         18 . The golf club head of  claim 11 , wherein the α-β titanium alloy comprises 6.5% to 8.5% aluminum, 1% to 2% vanadium, 0.08% carbon, 0.2% silicon, 0.3% iron, 0.2% oxygen, trace amounts of molybdenum, trace amounts of tin and the remaining alloy composition being titanium. 
     
     
         19 . The golf club head of  claim 11 , wherein the α-β titanium alloy comprises 6% aluminum, 4% vanadium and the remaining alloy composition being titanium. 
     
     
         20 . The golf club head of  claim 11 , wherein the α-β titanium alloy comprises 5.5% to 6.75% aluminum, 3.5% to 4.5% vanadium, 0.08% carbon, 0.03% silicon, 0.3% iron, 0.2% oxygen, 0.015% tin, trace amounts of molybdenum, and the remaining alloy composition amount being titanium.