TITANIUM ALLOY PIPE EXPANDING DIE

FIELD: plastic working of metals in aircraft, ship-building and related industries. SUBSTANCE: die has dielectric supporting plate, conical punch and pusher. Conical punch is assembled from dielectric and current-conductive metal members secured on common shaft. Current-conductive ring provides supp...

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Bibliographische Detailangaben
Hauptverfasser:	MURAV'EV V.I, MAKAROV K.A, FROLOV P.V, MAR'IN B.N, MAKAROVA E.A, IVANOV JU.L
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	FIELD: plastic working of metals in aircraft, ship-building and related industries. SUBSTANCE: die has dielectric supporting plate, conical punch and pusher. Conical punch is assembled from dielectric and current-conductive metal members secured on common shaft. Current-conductive ring provides supplying of pulsed electric current to billet. Minimum diameter D(min) of current-conductive ring is calculated by equation recited in Specifications. Such construction allows deformation extent of difficult-to-deform titanium alloys to be increased by 10% as compared to known construction requiring heating. EFFECT: increased efficiency, reduced labor intensity by eliminating formation of gas-saturated layer on billet surface and, as a result, elimination of additional finishing layer removal operations. 1 dwgw