FIELD: plastic working of metals. SUBSTANCE: method involves forming blank contours in two stages, with basic material effectively cut; at the first stage, separating blank from basic material along preliminarily made contour; at the second stage, shifting separate portions of obtained contour by local reducing of material thickness in adjoining zones to form final contour of billet. EFFECT: wider operational capabilities, reduced loss of basic material and weight of blank. 5 dwg
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Authors
Dates
1998-08-27—Published
1997-04-15—Filed