ADDITIVE MANUFACTURING SYSTEM FOR LIGHTWEIGHT LARGE SCALE SANDWICH STRUCTURES WITH TAILORABLE CORE DENSITIES

• Main Authors: LUKOWSKI, JR., Florian P, CARLSTEN, Curtis B, TRUXEL, Andrew
• Format: Patent
• Language: English; French; German
• Published: 06.03.2024
• 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; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A method of additive manufacturing including generating a stress model driven slice file for a structure and additively manufacturing a variable density foam core with respect to the stress model driven slice file such that a density of the variable density foam core is varied relative to a modeled stress in the structure manufactured with the variable density foam core. An additively manufactured structure includes a composite skin bonded to the variable density foam core.