Method and apparatus for additive manufacturing of glass

Abstract

This relates to an additive manufacturing method for producing a three-dimensional component made of glass, the method including the steps of: feeding continuously a glass filament having a flame retardant or self-extinguishing protective film applied to the surface thereof, from a filament feeding nozzle to a heating source for removing the flame retardant or self-extinguishing protective film and softening the glass fiber, applying the softened glass filament to a surface of a substrate or object, wherein the flame retardant or self-extinguishing protective film is made of polyimide-based material having a thickness in the range of 1 μm to 50 μm, wherein the fed glass filament length is less than 5 millimeters. The invention is also related to a glass filament and the use of the same.

Dependencies are inferred from the claim text.