Disclosed is a method for producing a composite material, wherein two or more composite components are arranged with respect to one another by casting to form a composite, so as to create a contact region essentially without a material bond between the composite components, wherein the composite components are thereafter materially bonded to one another in the contact region by means of a hot-rolling process.

This foil for a secondary battery negative electrode collector (negative electrode-collecting foil 5b) includes a first Cu layer (51) made of Cu or a Cu-based alloy, a stainless steel layer (52), and a second Cu layer (53) made of Cu or a Cu-based alloy, which are disposed in this order, a total thickness is 200 μm or less, and 0.01% proof stress is 500 MPa or more.

A method for creating a bonded zinc-coated structure is provided. In another aspect, a sheet metal joining system includes a heated roller contacting a sheet metal workpiece to braze together zinc-based coatings. A further aspect employs a zinc coated metal sandwich including a core having peaks and valleys.

A method of attaching a cladding element to a base element. A first inner side of the cladding element is positioned spaced apart from a second inner side of the base element to define a slot therebetween, and one or more heating elements are located in the slot. A non-oxidizing atmosphere is provided in the slot, and the heating element is energized, to heat at least portions of the cladding element and the base element to a hot working temperature. While at the hot working temperature, the first and second inner sides are engaged with each other, and one or both are moved relative to the other, for plastic deformation of the first and second inner sides, to subject the portions of the cladding element and the base element to shear stresses. The portions are allowed to cool, for recrystallization thereof.

A method of forming a canister by means of a mechanical bonding of respective layers of a first metal material (tantalum) and a second metal material (niobium) to form a sheet stock, thereby forming the sheet stock into a canister form, wherein the first metal material comprises tantalum and the second metal material comprises at least one of niobium, molybdenum, or steel. The completed canister comprises a first metal material comprising tantalum, and a second metal material mechanically bonded to the first metal material by subjecting the first and second metal materials to at least 1,000,000 psi, to thereby form a canister having an inner diameter of 13-19 millimeters (mm), the second metal material comprising at least one of niobium, molybdenum, or steel.

A method of forming a canister by means of a mechanical bonding of respective layers of a first metal material (tantalum) and a second metal material (niobium) to form a sheet stock, thereby forming the sheet stock into a canister form, wherein the first metal material comprises tantalum and the second metal material comprises at least one of niobium, molybdenum, or steel. The completed canister comprises a first metal material comprising tantalum, and a second metal material mechanically bonded to the first metal material by subjecting the first and second metal materials to at least 1,000,000 psi, to thereby form a canister having an inner diameter of 13-19 millimeters (mm), the second metal material comprising at least one of niobium, molybdenum, or steel.

A method for manufacturing a clad type electromagnetic shielding material includes step as follows: a first electrically conductive metallic layer, a magnetically conductive metallic layer, a second electrically conductive metallic layer and a shock-absorbing insulation layer, which are stacked in order, are one-time continuously rolled by a clad type rolling process, so as to finish a clad plate applied to an electromagnetic shielding field, wherein the surface of the shock-absorbing insulation layer provided with a binder faces the second electrically conductive metallic layer.

A method for manufacturing a clad type electromagnetic shielding material includes step as follows: a first electrically conductive metallic layer, a magnetically conductive metallic layer, a second electrically conductive metallic layer and a shock-absorbing insulation layer, which are stacked in order, are one-time continuously rolled by a clad type rolling process, so as to finish a clad plate applied to an electromagnetic shielding field, wherein the surface of the shock-absorbing insulation layer provided with a binder faces the second electrically conductive metallic layer.

A method for producing a sliding element, providing a first band-shaped or strip-shaped metallic material of a thickness, wherein the first material has apertures which extend over the entire thickness of the first material, providing a second band-shaped or strip-shaped metallic material of a thickness, areally connecting the first band-shaped or strip-shaped material to the second band-shaped or strip-shaped material by laser roll cladding such that a band-shaped or strip-shaped composite material is formed, which has a longitudinal direction X and a transverse direction, and has a thickness oriented perpendicularly with respect to the longitudinal and transverse directions. The method further includes bending the composite material about an axis oriented parallel to the transverse direction of the composite material, such that a sliding element is formed which has cutouts on its running surface that are formed at least partially from the apertures of the first material.

This invention provides a metal laminate that maintains functionality such as radiation performance and is excellent in dimensional accuracy after press work. Such metal laminate is a roll-bonded laminate composed of 2 or more metal layers, which exhibits a ratio σ/T of the standard deviation σ of thickness T.sub.1 of the outermost layer to thickness T of the roll-bonded laminate of 0% of 4.0%, the thickness T of 2 mm or less, and the deviation of the thickness T of 4.0% or less.