Herstellung Hochtransparenter Gegenstände mittels Fdm-3D-Druck

Details

Veröffentlichungs-Nr.

EP4197742

Aktenzeichen

EP21306781

Anmeldetag

15. Dezember 2021

Veröffentlichung

3. September 2025

Erteilung

3. September 2025

Rechtsraum

EP

IPC

B29C64/118B29C64/245B29C64/393B33Y10/00B33Y40/10B33Y50/02B33Y70/00B33Y80/00

Abstract

A fused filament fabrication 3D printing method for fabricating an optical article includes applying a surface treatment to a building plate; heating the building plate to a predetermined plate temperature; dispensing a thermoplastic through a nozzle set at a predetermined nozzle temperature onto the building plate while translating the nozzle or the building plate according to a first predetermined pattern at a predetermined printing speed to form a first layer; and solidifying the first layer, wherein a range of the predetermined plate temperature is between 30°C lower than a glass transition temperature of the thermoplastic and 20°C higher than the glass transition temperature of the thermoplastic, and a range of the predetermined nozzle temperature is at least 100 °C higher than the glass transition temperature of the thermoplastic, and at least 50 °C lower than a degradation temperature of the thermoplastic.

Anmelder

Firma

Essilor International

Land

🇫🇷 Frankreich

Fachgebiete