METHOD FOR PRODUCING A COMPOSITE METAL ARTICLE WITH AN EMBEDDED HEATING ELEMENT AND COOLING FLUID CHANNEL, AND COMPOSITE METAL ARTICLE PRODUCED THEREBY

摘要

A description is given of a method for producing a composite metal article (10) with an embedded heating element (30) and a composite metal article (10) produced thereby. The composite metal article (10) has an at least two-ply core layer (20) of aluminium or an aluminium alloy and two outer layers (14, 15) of metal, for example of stainless steel. Arranged between one (15) of these outer layers and one (12) of the core layer plies is a third core layer ply (13) of aluminium or an aluminium alloy, which has a channel (16) for cooling fluid. The third core layer ply (13) is diffusion-connected to the second core layer ply (12) and the one (15) of the outer layers. The two core layer plies (11, 12) and the other outer layer (14) are likewise diffusion-connected to one another. The first and second core layer plies (11, 12) have a heating element (30) embedded in them and form a heating plate (22). The third core layer ply (13), which contains the channel (16), forms a cooling plate (24). With respect to an imaginary centre plane (26) of the core layer (20), the channel (16) lies on one side of the centre plane (26) and the heating element (30) lies on the other side of the centre plane (26).