FIELD: metallurgy.
SUBSTANCE: working body is made in the form of an ice bar whose end part facing a punch contains a water-insoluble particulate material.
EFFECT: expansion of technological possibilities of operations for expanding hollow and tubular billets with minimal cost.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2649102C1 |
| DIE SET FOR SHAPING TUBULAR BLANKS | 2003 |
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| DIE SET FOR SHAPING TUBULAR BLANKS | 1996 |
|
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|
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| DEVICE FOR MANUFACTURE OF HOLLOW ARTICLES WITH INNER FLANGE FROM TUBULAR BLANKS | 0 |
|
SU1731400A1 |
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| METHOD TO STAMP ROD-TYPE PIECES WITH A HEAD PROVIDED WITH RADIAL SPROUTS, A PUNCH FOR PREMOULDING THE SPROUTS OF ROD-TYPE PIECES AND A PUNCH FOR FINISHED MOULDING SPROUTS OF THE HEAD OF ROD-TYPE PIECES | 1992 |
|
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| DEVICE FOR EXPANDING ROUND BILLETS | 0 |
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SU1143497A1 |
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SU1637933A1 |
