ALUMINIUM COMPOSITE MATERIAL WITH INTERNAL LAYER OUT OF ALMGSI ALLOY Russian patent published in 2015 - IPC B32B15/01 

FIELD: metallurgy.

SUBSTANCE: band has internal layer of AlMgSi alloy and at least located at one side or at both sides external layer of the non-heat-treatable aluminium alloy. One external layer of aluminium alloy in T4 state has lower tensile strength than layer of AlMgSi alloy, at that band in T4 state has uniform elongation A_g across the roll direction over 23%, and at thickness from 1.5 to 1.6 mm bend angle during bend testing across the roll direction is below 40°.

EFFECT: invention ensures band out of aluminium composite material to manufacture structural elements with high requirements for plastic shaping, that has improved bend characteristics.

8 cl, 9 dwg, 3 tbl