FIELD: technological processes.
SUBSTANCE: invention relates to metal deformation process and may be used to produce large-size semi-processed goods of aluminium or magnesium alloys used, for instance in aerospace, shipbuilding industry. Horizontal extrusion of stock is carried out, as well as at least one intermediate extrusion of it and further final horizontal extrusion with back pressure. Initial intermediate extrusion is carried out at the angle of 10-40° to axis of horizontal extrusion. Each subsequent intermediate extrusion is carried out at the angle of 100-160° to axis of previous intermediate extrusion. Intermediate extrusions are carried out with a drawing coefficient, which equals one.
EFFECT: improved plastic and strength properties of produced semi-processed product.
3 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR PRESSING OF SEMI-FINISHED PRODUCTS | 2008 |
|
RU2386506C2 |
| PRESSING OF BARS FROM DISPERSION-HARDENED ALUMINIUM ALLOYS AND FEMALE DIE FOR PRESSING OF BARS FROM DISPERSION-HARDENED ALUMINIUM ALLOYS | 2012 |
|
RU2562594C2 |
| MENUFACTURING METHOD OF PRODUCTS MADE OF LEADED BRASS | 2007 |
|
RU2352682C2 |
| METHOD OF MANUFACTURE OF SMALL ARMS CARTRIDGE CASES | 1996 |
|
RU2113309C1 |
| METHOD AND DEVICE FOR MAKING BARS FROM POWDERED METALS AND ALLOYS | 1992 |
|
RU2025217C1 |
| METHOD OF PRODUCING NUCLEAR REACTOR ABSORPTION CORE | 2009 |
|
RU2440215C2 |
| METHOD OF PRODUCING TITANIUM ROUND RODS WITH ULTRAFINE STRUCTURE | 2011 |
|
RU2464116C1 |
| MANUFACTURING METHOD OF BAR STOCK FROM ALLOYS BASED ON TITANIUM INTERMETALLIDE WITH ORTHO-PHASE | 2015 |
|
RU2644830C2 |
| METHOD FOR EXTRUSION OF THIN-WALLED GLASSES WITH THICK BOTTOM AND DEVICE FOR ITS IMPLEMENTATION | 2020 |
|
RU2761507C2 |
| METHOD OF PRODUCING BUSH-LIKE ARTICLES | 2009 |
|
RU2422237C1 |
