Patent ID: 6902497

Claim:
A wood-type golf club head comprising: a body having a crown, a sole, a ribbon, and a front wall with an opening, the crown having a thickness of 0.030 inch to 0.050 inch, the sole having a thickness of 0.030 inch to 0.050 inch, the body composed of a cast titanium alloy material; and a striking plate insert positioned within the opening and welded to the body, the striking plate insert having a uniform thickness in the range of 0.080 inch to 0.120 inch, the striking plate insert composed of a heat treated at above 1550° F. formed titanium alloy material consisting essentially of titanium, aluminum, tin, chromium, molybdenum, zirconium and silicon, and having a microstructure of at least 40% alpha phase; wherein the golf club head has a volume ranging from 350 cubic centimeters to 420 cubic centimeters and a mass ranging from 185 grams to 215 grams, a depth from 3.0 inches to 4.5 inches, a height from 2.0 inches to 3.5 inches and a width of 4.0 inches to 5.0 inches, and the golf club head has a coefficient of restitution ranging from 0.82 to 0.87; whereby the striking plate insert has an inward face progression less than 0.01 inch after at least 500 hits of a golf ball at a swing speed of 110 miles per hour.