ADDITIVE MANUFACTURE USING OPTICAL SCANNING

• Main Authors: ELLSON, Gregory, MATUSIK, Wojciech
• Format: Patent
• Language: English; French
• Published: 06.05.2021
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TESTING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An approach to improving optical scanning increases the strength of optical reflection from the build material during fabrication. In some examples, the approach makes use of an additive (or a combination of multiple additives) that increases the received signal strength and/or improves the received signal-to-noise ratio in optical scanning for industrial metrology. Elements not naturally present in the material are introduced in the additives in order to increase fluorescence, scattering or luminescence. Such additives may include one or more of: small molecules, polymers, peptides, proteins, metal or semiconductive nanoparticles, and silicate nanoparticles. L'invention concerne une approche permettant d'améliorer un balayage optique qui augmente l'intensité d'une réflexion optique par le matériau de construction pendant la fabrication. Dans certains exemples, l'approche utilise un additif (ou une combinaison de multiples additifs) qui augmente l'intensité du signal reçu et/ou améliore le rapport signal sur bruit reçu dans un balayage optique destiné à une métrologie industrielle. Des éléments non présents naturellement dans le matériau sont introduits dans les additifs afin d'augmenter la fluorescence, la diffusion ou la luminescence. De tels additifs peuvent comprendre un ou plusieurs élément(s) parmi : des petites molécules, des polymères, des peptides, des protéines, des nanoparticules métalliques ou semi-conductrices, et des nanoparticules de silicate.