FIELD: metallurgy industry.
SUBSTANCE: invention can be used for producing bands, rods, strips, from which cathodes of electron discharge devices are manufactured. Workpiece has cross section made in the form of a hexagon having two horizontal faces of equal length l1 and four inclined faces of equal length l2, at that, l1=(2÷3)l2, and angle between inclined faces is 100÷110°.
EFFECT: workpiece section shape allows eliminating cracks in the workpiece and increasing recovery.
2 dwg, 1 tbl
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