Method for producing at least one defined connecting layer between two components of different metals

A method for producing at least one connecting layer, which is defined with respect to its two-dimensional extent, between two components, wherein the first component is produced from a first metallic material and the second component is produced from a second metallic material, and the first and/or the second component comprises a coating composed of a third metallic material whose melting temperature is lower than the melting temperature of the first and of the second material, the method comprising the steps of:

• locally heating the coating in a region which is predetermined for production of the defined connecting layer to a connecting temperature which lies above the melting temperature of the third material and lies below the melting temperature of the first material and below the melting temperature of the second material;
• interrupting a supply of energy as soon as the coating is at least partially melted in the region of the defined connecting layer;
• cooling the at least partially melted coating in order to, during solidification of the coating, form the defined connecting layer which is fixedly connected to the first component and fixedly connected to the second component and which is defined with respect to its two-dimensional extent,
• wherein, during at least one of the above steps, the first component and the second component, with the coating arranged therebetween, are pressed against one another in an intended connecting position,
• wherein the heating of the coating, and also the cooling of the at least partially melted coating, for the production of the defined connecting layer is effected by a tool which has both a heating and a cooling function.