Metal deforming – By application of fluent medium – or energy field – By kinetic energy of fluid or field
Patent
1983-12-09
1984-11-06
Gilden, Leon
Metal deforming
By application of fluent medium, or energy field
By kinetic energy of fluid or field
29421E, 72 62, B21D 2210
Patent
active
044804539
ABSTRACT:
Apparatus for the blast hydroplastic finishing of tubular billets, comprising a housing to which there are attached front and back stops, while the back stop has a blast chamber and a work tool disposed in it. In the back stop, after the blast chamber, there are a guiding chamber and a compensating chamber, the three being interconnected. The work tool in its initial position is disposed against a rest in the guiding chamber. The tool has a center blind hole and radial channels connected thereto, and in the front end of the work tool there is a gasket. In the front stop there is mounted a fixed ram and there is positioned a traveling cylindrical piston with a center blind hole wherein the tubular billet is disposed. One end of this cylindrical piston slips over the fixed ram so that a recoil chamber is formed, the recoil chamber being connected to the compensating chamber through longitudinal grooves in the traveling cylindrical piston.
REFERENCES:
patent: 3559271 (1971-02-01), Nilsson
patent: 4049367 (1977-09-01), Tominoga
Davidkov, deceased Peter I.
Petkov Georgi K.
Gilden Leon
N P S P PO Hydroplastichna Obrabotka na Metalite
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