REMOVAL OF EXCESS BUILD MATERIAL IN ADDITIVE MANUFACTURING

• Main Authors: ROMAN JUSTIN M, DUDA MICHAEL, PICKARD JOEL V
• Format: Patent
• Language: Chinese; English
• Published: 29.11.2019
• 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 three-dimensional (3D) printer and method of additive manufacture are disclosed. The method includes the steps: building a three-dimensional (3D) object via a 3D printing process. After the 3D printing process, the 3D object is contained within a cake comprising the 3D object and partially fused excess build material. The method further includes vibrating the cake to loosen the excess build material. The frequency of the vibration is swept across a predetermined range of frequencies over a predetermined sweep interval. 公开了一种三维(3D)打印机和一种增材制造方法。该方法包括：通过三维(3D)打印工艺构造3D物体。在3D打印工艺之后，3D物体被容纳在结块中，该结块包括该3D物体以及部分熔融的多余构造材料。该方法还包括：振动结块以使多余构造材料松散。振动的频率在预定扫描间隔内扫过预定频率范围。