FIELD: plastic working of metals, possibly manufacture from different metals and alloys of thick-wall tubes used for further rolling or making different parts instead of solid cast or forged blanks.
SUBSTANCE: apparatus includes arranged along the same axis: container, plug of container, punch and dead pressure pad. Diameter of working portion of said pad exceeds that of punch. Centering ring is mounted between lateral surface of pressure pad and container. Said ring may move in direction opposite relative to motion direction of punch at extrusion process. Apparatus is provided with pusher arranged between centering ring and pressure pad at one side and punch at other side.
EFFECT: enhanced accuracy of thick-wall extruded tubes, mainly by wall thickness, significant increase of length of tubular blank.
3 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EXTRUDING SHORT-LENGTH TUBES | 2001 |
|
RU2208490C2 |
| METHOD FOR MANUFACTURE OF STEEL WELDLESS PIPES OF LARGE DIAMETER AND HORIZONTAL HYDRAULIC PRESS FOR ITS REALISATION | 2007 |
|
RU2343031C1 |
| METHOD OF MAKING LONG-LENGTH HOLLOW ARTICLES | 2015 |
|
RU2605875C1 |
| METHOD OF SHORT-CUT PIPES PRESSING | 2007 |
|
RU2350420C1 |
| TOOL FOR PRESSING OF PIPES WITH WELDING | 2007 |
|
RU2340418C1 |
| METHOD FOR MANUFACTURE OF LIGHT-ALLOY PIPES | 1999 |
|
RU2168382C1 |
| PIPE PRESSING METHOD AND APPARATUS | 1996 |
|
RU2094148C1 |
| METHOD FOR EXTRUDING LARGE-DIAMETER TUBES | 1998 |
|
RU2146177C1 |
| METHOD OF MANUFACTURING SEAMLESS TUBES FROM CYLINDRICAL BILLETS OF HARD-TO-DEFORM METALS AND ALLOYS | 2016 |
|
RU2650474C2 |
| DEVICE FOR COMPACTION OF HOLLOW PROFILES | 2010 |
|
RU2443485C2 |
