FIELD: metallurgy; production of wrought semi-finished products of complex shape from high strength aluminum alloys, such as frames, fittings, beams and other long-cut items mainly including longitudinal fins.
SUBSTANCE: proposed method includes casting the ingot, hot compaction of intermediate blank, hardening, straightening by tension and bending of blank, molding and aging of item. After casting, ingot is subjected to annealing at heating to temperature of 400-420°C holding at heat for 3 h followed by turning the ingot. According to some versions of invention, aging is performed in two-stage mode: heating to temperature 100-120°C holding at heat for 10-20 h and heating to temperature of 160-180°C holding at heat for 5-10 h.
EFFECT: improved mechanical properties of items; minimization of defects.
6 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MANUFACTURING INTERMEDIATE PRODUCTS FROM ALUMINUM ALLOY AND PRODUCT MANUFACTURED BY SAID METHOD | 2000 |
|
RU2184174C2 |
| THERMOMECHANICAL PROCESSING FOR INCREASE IN DUCTILITY OF 3D SEMIS FROM Al-Cu-Mg-Ag ALLOYS | 2013 |
|
RU2534909C1 |
| PROCEDURE FOR PRODUCTION OF ITEM OUT OF HIGH-STRENGTH ALUMINIUM ALLOY | 2008 |
|
RU2396367C2 |
| METHOD OF EXTRUDING SEMIS OF HIGH-STRENGTH ALUMINIUM ALLOY AND PARTS THUS MADE | 2012 |
|
RU2492274C1 |
| METHOD FOR PRODUCING MASSIVE SEMIPRODUCTS FROM HIGH-STRENGTH ALUMINUM ALLOYS | 2020 |
|
RU2744582C1 |
| PROCEDURE FOR FABRICATING PIPES OUT OF ALUMINIUM ALLOYS | 2009 |
|
RU2395356C1 |
| METHOD FOR PRODUCTION OF BARS OF HIGH-STRENGTH ALUMINIUM ALLOY | 2016 |
|
RU2622199C1 |
| PLATE FROM HIGH-STRENGTH ALUMINIUM ALLOY AND METHOD OF ITS PRODUCTION | 2014 |
|
RU2569275C1 |
| METHOD OF MAKING TUBES FROM Al-Zn-Mg-Cu-SYSTEM-BASED SUPERHARD ALUMINIUM ALLOYS | 2012 |
|
RU2480300C1 |
| METHOD OF MANUFACTURING INTERMEDIATE PRODUCTS FROM ALUMINUM ALLOY, AND ARTICLE OBTAINED BY THIS METHOD | 2003 |
|
RU2238997C1 |
