Loading patent…
OwnerVladimir Georgievich Kaporovich, Vitaly Kirillovich Udovenko +2inventors
InventorsVladimir Georgievich Kaporovich, Vitaly Kirillovich Udovenko, Viktor Petrovich Krasnorutsky, Akhmet Galievich Chechenets
Estimating the term…
A method of producing a hermetically sealed, preferably sphere-shaped end in a tubular workpiece, residing, according to the invention, in that an end of a tubular workpiece is heated to a forging temperature and is then reduced until a portion is obtained with a diameter equal to that of a sphere to be obtained. Afterwards, a semi-sphere is subjected to spinning applied to the end of said reduced portion until a hermetically sealed end is formed. This is followed by spinning of a necking portion until a sphere is obtained, the spinning of the constricted portion being carried out as starting from the conjugating line running between the semi-sphere obtained and the reduced portion along the sphere generatrix towards the main portion of the workpiece.
A method of producing a sphere having a hermetically sealed end at an end of a tubular cylindrically shaped workpiece, wherein the diameter of the sphere is less than the diameter of the tubular workpiece, comprising the steps of heating a tubular workpiece end to a forging temperature;
Dependencies are inferred from the claim text.