Metal deforming – By application of fluent medium – or energy field – By kinetic energy of fluid or field
Patent
1983-11-17
1986-10-28
Gilden, Leon
Metal deforming
By application of fluent medium, or energy field
By kinetic energy of fluid or field
29421E, B21D 2602
Patent
active
046191291
ABSTRACT:
Method of and apparatus for forming blanks by hydroplastic deformation. In a closed deformation space there is supplied a working fluid under high pressure and, simultaneously, the material of the blank to be deformed which is disposed in the deformation space is subjected to plastic deformation by the working fluid. In the zone of the closed deformation space there is applied a concentrated and controllable impulsed fluid load, this load being applied cyclically at equal time intervals and being controlled along the length of the blank being deformed.
The apparatus of the invention comprises a working tool with a blind central hole and radial channels connected thereto, and a female die in which the blank to be deformed is disposed. The working tool is connected to a supply cylinder in which there is provided a pressure chamber, the pressure chamber containing a piston connected to the working tool. The supply cylinder is fastened to the movable part of a press. The pressure chamber is connected to an impulse activator by means of a plunger which is attached tightly to the supply cylinder.
REFERENCES:
patent: 4049367 (1977-09-01), Tominaga
patent: 4147459 (1983-11-01), Tominota
Atanassova Yordanka R.
Botev Botyo P.
Deevski Stefan K.
Metev Georgi M.
Naydenov Ivan H.
Gilden Leon
NPSP po Hydroplastichna Obrabotka na Metalite
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