DRAWING DIE

FIELD: plastic metal working, namely production of tubes and shapes. SUBSTANCE: drawing die includes body, hard-alloy inserts pressed-in to said body and one-piece sleeve. Said body is made of two yokes mutually opposite pressed one to another. Said hard-alloy inserts are in the form of sectors. One...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SMIRNOV G.V, SMIRNOV V.G, SOKOLOVSKIJ V.I
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: plastic metal working, namely production of tubes and shapes. SUBSTANCE: drawing die includes body, hard-alloy inserts pressed-in to said body and one-piece sleeve. Said body is made of two yokes mutually opposite pressed one to another. Said hard-alloy inserts are in the form of sectors. One-piece sleeve is made of material with less hardness than that of hard-alloy inserts. Drawing hole of tool has reducing portion whose length is equal to width of said sleeve and squeezing portion. Members of drawing die made of different-hardness materials are arranged according to differential distribution of specific pressure of tubular blank upon tool at drawing process. EFFECT: enhanced wearability of drawing die due to lowered volume of hard-alloy inserts, decreased consumption of hard alloy material. 2 dwg