Additive manufacturing having energy beam and lamp array

• Main Authors: STEFFAS, PAUL J, ISHIKAWA, DAVID MASAYUKI, BURROWS, BRIAN HAYES
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2018
• 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

An additive manufacturing system includes a platform to support an object to be fabricated, a dispenser to deliver a plurality of layers of a feed material over the platform, a controller configured to store digital data representing a pre-defined pattern, a laser configured to generate a laser beam to impinge an outermost layer of the feed material and coupled to the controller to fuse the feed material in the pre-defined pattern, and a plurality of independently controllable infrared lamps, each infrared lamp directed to a different section of an outermost layer of the feed material.