1. IN A METHOD OF COLD WORKING A SOLID STEEL BLANK, THE STEPS OF PROVIDING A DISC-LIKE STEEL STARTING BLANK, SUCCESSIVELY SUBJECTING THE BLANK TO A SERIES OF AXIAL COMPRESSIONS WHILE LATERALLY CONFINING THE SAME TO PROGRESSIVELY DECREASE THE DIAMETER OF THE BLANK AND TO FIRST INCREASE AND THEN DECREASE THE AXIAL THICKNESS OF THE BLANK, INITIALLY FORMING AN ANGULAR ANNULAR SHOULDER IN THE TOP SURFACE OF THE BLANK DURING THE FIRST AXIAL PRESSURE APPLICATION, MAINTAINING SAID ANGULAR ANNULAR SHOULD THROUGHOUT SUBSEQUENT AXIAL PRESSURE APPLICATIONS, UTILIZING SAID SHOULDER FOR THE FINAL AXIAL PRESSURE APPLICATION TO PRODUCE A FINISHED CYLINDRICAL CUP-SHAPED ARTICLE WITH TUBULAR