Method for producing a composite pane having a corrosion-protected functional coating

A method for producing a composite pane having a functional coating, the method comprising:

• a) applying a functional coating to part of a surface of a base pane;
• b) cutting out a first pane from the base pane via a cutting tool with a cutting wheel and a cooling fluid while introducing at least one coating-free region into the functional coating via a decoating tool with a laser beam, the decoating tool moving simultaneously with the cutting tool,
• wherein
• the at least one coating-free region completely surrounds an inner region of the functional coating and separates the inner region from an outer region that partially or completely surrounds the inner region,
• the cutting wheel is guided directly on a coated surface of the first pane, and
• the laser beam is directed onto the first pane through a surface of the first pane facing away from the coated surface of the first pane and is guided through the first pane onto the functional coating in a region covered by the cooling fluid;
• and
• c) bonding, via a thermoplastic intermediate layer, a surface of the first pane having the functional coating to a surface of a second pane.