Glass forming device and method

A tooling to form a sheet of glass, comprising:

• a forming die made of electrically conductive material, the forming die comprising:
• a molding surface;
• and
• a plurality of first conduits, each first conduit comprises a copper tube insulated from a wall of said each first conduit by a ceramic sleeve, the copper tube of said each first conduit being connected to a high-frequency generator to make up a first induction circuit;
• the forming die further comprising, between the plurality of first conduits and the molding surface, a network of cooling conduits to circulate a gas;
• a heating unit made of graphite distant by 5 to 50 mm from the forming die, the heating unit comprising:
• a surface configured to produce a thermal radiation opposite the molding surface comprising a coating configured to resist oxidation at 1200° C. and with an emissivity in wavelengths between 3 μm and 50 μm;
• and
• a plurality of second conduits, each second conduit comprises a copper tube insulated from a wall of said each second conduit by a ceramic sleeve, the copper tube of said each second conduit being connected to the high-frequency generator to make up a second induction circuit;
• a connector to connect the first induction circuit and the second induction circuit to the high-frequency current generator;
• and
• a support between the die and the sheet of glass configured to hold the sheet of glass away from and opposite the molding surface when the heating unit is heating the sheet of glass.