Metal deforming – With temperature modification of tool or of specified... – Cooling
Patent
1982-05-12
1985-03-05
Gilden, Leon
Metal deforming
With temperature modification of tool or of specified...
Cooling
72349, 72364, B21B 2200
Patent
active
045023131
ABSTRACT:
An apparatus for drawing and ironing a cup with a peripheral flange from relatively thin material into an elongated container also having a flange by moving a die and punch relative to one another and draw clamping and centering sleeve coaxial therewith and thereafter applying a bottom forming member axially relative to the die against the punch to profile shape said container bottom without the benefit of coolant flooding of said material during drawing and ironing, the improvement comprising; a die of a predetermined shape and size carried in the apparatus, a punch of a predetermined shape and size for cooperating with said die and each having surfaces which define a clearance therebetween during forming of said material; separate passages through said die means and said punch means to permit flow of coolant; valving in line with die and punch passages for independent control of the coolant flow from a supply means to said die and punch to permit regulation of the operating temperature of said die means with respect to said punch means to increase or decrease said clearance therebetween by moving said surfaces toward or away from one another during the drawing and ironing of said material into an elongated container.
REFERENCES:
patent: 3559447 (1971-02-01), Bogoit
patent: 3577753 (1971-05-01), Shoh et al.
patent: 3924437 (1975-12-01), Hortig
patent: 4148208 (1979-04-01), Maeder
Phalin Thomas L.
Ulmes James J.
American Can Company
Audet Paul R.
Gilden Leon
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