ALUMINUM ALLOYS LAMINATE PLATES PRODUCING METHOD Russian patent published in 2006 - IPC B23K20/04 B23K103/10 

FIELD: rolled stock production, namely manufacture of laminate large-size significant thickness plates by plastic deformation process.

SUBSTANCE: method comprises steps of placing on outer surfaces of blanks and between blanks cladding planar sheets of aluminum alloy; rolling pack at first with relation of length L of arc biting to current thickness value H of rolled piece in range 0.1 - 0.3 while setting single percentage reduction value ε for pass in range 1.0 - 3.0 %; then rolling at relation L/H increased from 0.3 till 2.5 while setting single percentage reduction value ε in range 3 - 25%.

EFFECT: prevention of pack opening at rolling, high -quality cohesion of layers, improved operational reliability of laminate plates.

2 dwg, 1 tbl, 1 ex