Patent ID: 8323427

Claim:
A method of manufacturing a metal alloy part, comprising: producing a metal alloy blank, followed by gauge rolling the blank, to create a gauged blank; introducing residual stresses into the gauged blank, wherein introducing residual stresses into the gauged blank comprises solution annealing the gauged blank followed by quenching the gauged blank in a cooling medium, wherein a solutionized and quenched blank is formed, and solution annealing further comprises heating the gauged blank until intermetallic phases in the gauged blank to go into solution; reducing the residual stresses in the solutionized and quenched blank after quenching by plastically deforming the solutionized and quenched blank, wherein a non-linear blank is formed; friction welding a metal alloy strip onto the non-linear blank; further reducing residual stress in the non-linear blank while enhancing corrosion resistance of the non-linear blank, wherein further reducing residual stress while enhancing corrosion resistance comprises: creep forming the non-linear blank, wherein creep forming the non-linear blank comprises: heating the non-linear blank to approximately 250 to 350 degrees Fahrenheit while applying force to flatten the non-linear blank, wherein a flattened blank is formed; and, forming the metal alloy part by machining a surface on the flattened blank.