The method 1, further comprising annealing the workpiece after compressing {TAIL ~ the outer diameter} of {HEAD ~ the workpiece} 
The method 1 , further comprising annealing the workpiece after compressing { TAIL ~ the outer diameter } of { HEAD ~ the workpiece }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD