Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent
1987-05-11
1988-10-18
Bray, W. Donald
Metal deforming
By use of closed-die and coacting work-forcer
Forcing work into or within closed die; e.g., forging
72358, B21D 2200
Patent
active
047778172
ABSTRACT:
A press tool comprising a bottom plate onto which there are mounted a die with radial grooves and a profiled ejector inserted into the die and circularly oriented in it so that the grooves of the die and the ejector coincide, and over them, by means of guiding columns and guiding sleeves, there are mounted a top plate with a rigid insert attached to its bottom side, a rest and a punch-holder with radial grooves, in which there are fastened prismatic punches and a central core, and underneath the punch-holder there is provided a punch-guide, fastened to the guiding columns by means of guiding sleeves.
REFERENCES:
patent: 4669298 (1987-06-01), Kono et al.
Alexandrov Alexander K.
Doncheva Maiya K.
Fishekov Nikola D.
Georgiev Velcho N.
Hristov Chavdar D.
Bray W. Donald
D S O "ELPROM"
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