FIELD: process engineering.
SUBSTANCE: invention relates to machine building, particularly, to production of aircraft engine blower hollow blades by superplastic forming. Billet comprises mouldable and unmouldable parts. Process zone is located over perimeter of unmouldable part. Process zone surface on female die side has ledges to ensure tight fir of opposite surface of process zone to male die at closed mould.
EFFECT: higher precision, lower labour input.
5 dwg
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Author |
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