METHOD AND DEVICE FOR MANUFACTURING A METAL PANEL
Disclosed is a method for manufacturing a metal panel (1), characterised in that: two metal strips intended to form facings (2, 3) for said panel (1) are unwound, continuously or stepwise (2, 3), by passing each of the strips over the surface of a cylinder (5, 6), said cylinders (5, 6) being rotated in opposite directions about two axes situated in the same plane, said facings (2, 3) and said cylinders (5, 6) defining an air gap; said air gap is supplied with a metal material in powder or wire form, intended to form the core (4) of the panel (1); a source of energy is supplied to said metal material which results in an at least partial melting of said metal material, and/or the welding thereof against the facings (2, 3), forming a porous or trellis structure between the facings; and said panel is advanced (1) by the unwinding of the facings (2, 3) and the rotation of the cylinders (5, 6). The invention also relates to a device for implementing said method.