APPARATUS FOR ELECTRICALLY ACTING UPON SHEET BLANK Russian patent published in 1997 - IPC

Abstract RU 2089316 C1

FIELD: plastic metal working, namely plastic deforming of blanks at differentially heating them. SUBSTANCE: apparatus includes upper and lower holders, inserts arranged in lower holder and electric current source. Gasket of dielectric heat resistant material is placed on surface of upper holder turned to lower holder. Said inserts are changeable ones. A part of inserts is made of dielectric heat resistant material, other part - of metal with high heat conductivity. EFFECT: improved design. 2 dwg

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RU 2 089 316 C1

Authors

Ivanov Ju.L.

Popov O.V.

Mar'In B.N.

Mel'Nikov E.N.

Dates

1997-09-10—Published

1995-12-26—Filed