Method of cold forming a solid ring

Claim 1

THE METHOD OF PRODUCING COLD-FORGED METAL RINGS OF CLOSE FINAL DIMENSION AND HIGH STRENGTH SUITABLE FOR MACHINE PARTS AND AS WELDED ELEMENTS OF A COMBINATION WHICH COMPRISES SELECTING A SLUG CONTAINING SUFFICIENT METAL TO FORM THE RING WITH SLIGHT EXCESS, STRIKING SAID SLUG TO FORM A DOUBLE CUP WITH A COMMON WEB FORMING THE BOTTOM OF EACH CUP AS A FIRST STEP, AS A SECOND STEP, REMOVING THE CENTER PORTION OF THE WEB TO LEAVE A SMALL RESIDUAL ANNULAR AREA ON THE INNER WALLS OF THE CUPS WHEREBY A RING HAVING A RESIDUAL WEB IS FORMED, AS A THIRD STEP STRIKING THE RESIDUAL WEB ALONG ITS OUTER PERIPHERY DIRECTLY ADJACENT THE RING IN A NARROW ANNULAR PRESSURE AREA TO CREATE AN EXTREME BRITTLE CONDITION OF THE METAL WITHIN SAID RESIDUAL WEB ADJACENT THE RING INNER WALL WHILE SHAPING THE SURFACE OF SAID RING TO A FINAL DIMENSION AND FINISH, AND AS A LAST STEP REMOVING SAID RESIDUAL WEB FROM THE INNER WALLS OF THE RING AND COINING THE SEVERED AREA SIMULTANEOUSLY.

Claim 2

THE METHOD OF PRODUCING COLD-FORGED METAL RINGS OF CLOSE FINAL DIMENSION AND HIGH STRENGTH SUITABLE FOR MACHINE PARTS AND AS WELDED ELEMENTS OF A COMBINATION WHICH COMPRISES SELECTING A SLUG CONTAINING SUFFICIENT METAL TO FORM THE RING WITH SLIGHT EXCESS, STRIKING SAID SLUG TO FORM A DOUBLE CUP WITH A COMMON WEB FORMING THE BOTTOM OF EACH CUP AS A FIRST STEP, AS A SECOND STEP, REMOVING THE CENTER PORTION OF THE WEB TO LEAVE A SMALL RESIDUAL ANNULAR AREA ON THE INNER WALLS OF THE CUPS WHEREBY A RING HAVING A RESIDUAL WEB IS FORMED, AS A THIRD STEP STRIKING THE RESIDUAL WEB ALONG ITS OUTER PERIPHERY DIRECTLY ADJACENT THE RING IN A NARROW ANNULAR PRESSURE AREA TO CREATE AN EXTREME BRITTLE CONDITION OF THE METAL WITHIN SAID RESIDUAL WEB ADJACENT THE RING INNER WALL WHILE SHAPING THE SURFACE OF SAID RING TO A FINAL DIMENSION AND FINISH, AND AS A LAST STEP REMOVING SAID RESIDUAL WEB FROM THE INNER WALLS OF THE RING AND COINING THE SEVERED AREA SIMULTANEOUSLY.