FIELD: foundry.
SUBSTANCE: proposed method comprises casting composite ingot into mould and cutting surface layer of produced ingot. Cast ingot comprises inner area containing first aluminium alloy, outer area surrounding inner area containing second aluminium alloy, and zone with composition gradient between inner and outer areas. Second aluminium alloy differs from the first aluminium alloy, besides, in the zone with the composition gradient between the inner and outer regions of the ingot the content of at least one alloying element of the first aluminium alloy decreases in the direction from the inner region to the outer region. When cutting the surface layer of the composite ingot, at least a part of the zone with a composition gradient and the outer area are removed from the rolling surface.
EFFECT: exclusion of ingot cracking during casting and rolling is provided.
22 cl, 11 dwg, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| REDUCED SUSCEPTIBILITY TO CRACKING OF CAST INGOTS OF 7XXX SERIES, OBTAINED BY CONTINUOUS CASTING INTO CRYSTALLIZER (DC) | 2020 |
|
RU2819336C1 |
| PRODUCTS FROM ALUMINUM ALLOY WITH FUNCTIONAL GRADIENT AND METHODS OF MANUFACTURE THEREOF | 2021 |
|
RU2818786C1 |
| HOMOGENISATION AND THERMAL TREATMENT OF CAST METAL | 2006 |
|
RU2424869C2 |
| METHOD OF HEATING METALLIC INGOT, METHOD OF CONTINUOUS OR SEMI CONTINUOUS CASTING WITH DIRECT COOLING, AND METHOD OF INGOT ROLLING | 2011 |
|
RU2469815C2 |
| CLAD PRODUCT BASED ON ALLOY OF 2xxx SERIES FOR AEROSPACE ENGINEERING | 2020 |
|
RU2785724C1 |
| METHOD AND MACHINE FOR CONTINUOUS OR SEMI-CONTINUOUS METAL CASTING | 2006 |
|
RU2468885C2 |
| METHOD OF CASTING (VERSIONS) | 2011 |
|
RU2486026C2 |
| METHOD OF MANUFACTURING ARTICLES FROM ALUMINUM ALLOY OF 2XXX SERIES | 2021 |
|
RU2826059C1 |
| ALUMINIUM ALLOYS WITH IMPROVED FORMABILITY AND RELATED METHODS | 2017 |
|
RU2712207C1 |
| CASTING METHOD OF COMPOSITE INGOT | 2004 |
|
RU2356686C2 |
