Patent ID: 7776166

Claim:
A method for forming a hollow cathode magnetron sputter target comprising the steps of: providing a copper billet; hot forging the billet by heating the billet for about 75 minutes at a temperature of from about 1650° F. to about 1750° F.; upset forging the billet to a predetermined first dimension to achieve a part; rotating the part by first, second and third successive 90° increments and alternating rotary forging and upset forging to a successive predetermined dimension; quenching the part; heating the part for about 75 minutes at about 1112° F.+/−50° F.; upset forging the part to a predetermined dimension; air cooling the part; cold rolling the part to achieve a predetermined dimension by incurring 0.040 in reductions per rolling pass; annealing the part at about 350° C. for about 2 hours; and final forming the part to predetermined hollow cathode magnetron dimensions.