A high interfacial bonding strength laminated aluminum alloy manufacturing method includes: combining and fixing a rear plate, a middle plate, and a front plate to obtain a combined plate; performing a first heat treatment on the combined plate and then performing a first roll-bonding to obtain a laminated aluminum alloy; conducting a friction stir treatment after setting a weld-start plate and a lead-out plate on the laminated aluminum alloy; and carrying out a second heat treatment, a second rolling treatment, a solid solution treatment and an aging treatment in sequence on the laminated aluminum alloy after the friction stir treatment. By friction stir treatment of the laminated aluminum alloy, the original interlayer structure is broken and a three-dimensional spatial structure consisting of the nugget zone and an interlocked structural zone is formed. As a result, the interlayer bonding strength of the laminated aluminum alloy is greatly improved.

A high interfacial bonding strength laminated aluminum alloy manufacturing method includes: combining and fixing a rear plate, a middle plate, and a front plate to obtain a combined plate; performing a first heat treatment on the combined plate and then performing a first roll-bonding to obtain a laminated aluminum alloy; conducting a friction stir treatment after setting a weld-start plate and a lead-out plate on the laminated aluminum alloy; and carrying out a second heat treatment, a second rolling treatment, a solid solution treatment and an aging treatment in sequence on the laminated aluminum alloy after the friction stir treatment. By friction stir treatment of the laminated aluminum alloy, the original interlayer structure is broken and a three-dimensional spatial structure consisting of the nugget zone and an interlocked structural zone is formed. As a result, the interlayer bonding strength of the laminated aluminum alloy is greatly improved.

Disclosed is a duplex stainless clad steel plate in which a duplex stainless steel plate as a cladding metal is bonded or joined to one or both surfaces of a base steel plate, in which the base steel plate comprises a predetermined chemical composition such that Nb/N is 3.0 or more and Ceq is 0.35 to 0.45, and the duplex stainless steel plate comprises: a predetermined chemical composition such that PI is 34.0 to 43.0; and a microstructure containing a ferrite phase in an area fraction of 35% to 65%, and in the microstructure, an amount of precipitated Cr is 2.00% or less and an amount of precipitated Mo is 0.50% or less.

Disclosed is a duplex stainless clad steel plate in which a duplex stainless steel plate as a cladding metal is bonded or joined to one or both surfaces of a base steel plate, in which the base steel plate comprises a predetermined chemical composition such that Nb/N is 3.0 or more and Ceq is 0.35 to 0.45, and the duplex stainless steel plate comprises: a predetermined chemical composition such that PI is 34.0 to 43.0; and a microstructure containing a ferrite phase in an area fraction of 35% to 65%, and in the microstructure, an amount of precipitated Cr is 2.00% or less and an amount of precipitated Mo is 0.50% or less.

A metal roof panel includes a rib with a unique shape. The rib is bilateral with upwardly angled sides that each transition into an indentation, with both indentations transitioning into a central flat apex. Between each rib is a channel, preferably including at least one raised surface. The lower surface of the channel between the raised surfaces, and the top of the raised surfaces, are substantially planar and parallel to the flat surface of the apex of the panel. A unique method of manufacturing the roof panel employs a roll machine configured to shape a piece of sheet metal into the roof panel by modifying the shape in many small increments, which allows the final product to have a fairly intricate bend pattern.

A metal roof panel includes a rib with a unique shape. The rib is bilateral with upwardly angled sides that each transition into an indentation, with both indentations transitioning into a central flat apex. Between each rib is a channel, preferably including at least one raised surface. The lower surface of the channel between the raised surfaces, and the top of the raised surfaces, are substantially planar and parallel to the flat surface of the apex of the panel. A unique method of manufacturing the roof panel employs a roll machine configured to shape a piece of sheet metal into the roof panel by modifying the shape in many small increments, which allows the final product to have a fairly intricate bend pattern.

Provided herein is a rolled composite aerospace product comprising a 2XXX-series core layer and an AlCu alloy clad layer coupled to at least one surface of the 2XXX-series core layer, wherein the AlCu alloy is an aluminium alloy comprising about 0.06% to 2.8% Cu, and preferably about 0.10% to 1.8% Cu. The rolled composite aerospace product is ideally suitable for structural aerospace parts. Also described herein is a method of manufacturing a rolled composite aerospace product.

Provided herein is a rolled composite aerospace product comprising a 2XXX-series core layer and an AlCu alloy clad layer coupled to at least one surface of the 2XXX-series core layer, wherein the AlCu alloy is an aluminium alloy comprising about 0.06% to 2.8% Cu, and preferably about 0.10% to 1.8% Cu. The rolled composite aerospace product is ideally suitable for structural aerospace parts. Also described herein is a method of manufacturing a rolled composite aerospace product.

A method for producing a composite material by plating a band arrangement with a top side (O) and a bottom side (U), wherein the band arrangement comprises at least a first strip and a second strip, which form between them a filling channel, wherein the band arrangement comprises at least one filler strip, wherein the abovementioned band arrangement is plated, wherein a part of the filler strip, during the plating, is extruded into the filling channel; and a composite material, characterized in that it has been produced according to the method as disclosed.

A method for producing a composite material by plating a band arrangement with a top side (O) and a bottom side (U), wherein the band arrangement comprises at least a first strip and a second strip, which form between them a filling channel, wherein the band arrangement comprises at least one filler strip, wherein the abovementioned band arrangement is plated, wherein a part of the filler strip, during the plating, is extruded into the filling channel; and a composite material, characterized in that it has been produced according to the method as disclosed.