The method further includes placing the workpiece on a mandrel such that the inner diameter is adjacent to the mandrel and compressing the outer diameter of the workpiece at a temperature below a recrystallization temperature of the workpiece using {TAIL ~ a combination} of axial and radial forces so that the mandrel contacts the inner diameter and imparts a compressive hoop stress to {HEAD ~ the inner diameter} of the workpiece 
The method further includes placing the workpiece on a mandrel such that the inner diameter is adjacent to the mandrel and compressing the outer diameter of the workpiece at a temperature below a recrystallization temperature of the workpiece using { TAIL ~ a combination } of axial and radial forces so that the mandrel contacts the inner diameter and imparts a compressive hoop stress to { HEAD ~ the inner diameter } of the workpiece
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH