FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and can be used for blanking parts from cold- or hot-roller stock. First, blanking is performed at maximum depth sections unless clearance between female die and male die is taken up, said clearance being equal to difference in elastic strain of the boss and web. Then, blanking is made at all parts of billet cross-section unless complete blanking of the part.
EFFECT: higher quality.
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