DEVICE AND METHOD FOR PRODUCING THREE-DIMENSIONAL WORKPIECES

• Main Authors: WILKES JAN, HOPPE BIRK, ROESGEN LUCAS
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2019
• 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; CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to a device for producing three-dimensional workpieces. The device comprises a carrier for receiving raw material powder and a radiation unit for selectively radiating the raw material powder applied to the carrier with electromagnetic radiation or particle radiation in order to produce on the carrier a workpiece made of the raw material powder by a generative layering construction process. The device also comprises a vertical movement means, which is designed to move the radiation unit vertically relative to the carrier, and a cylinder construction wall, which extends substantially vertically and which constitutes a lateral delimitation for the raw material powder applied to the carrier, wherein the cylinder construction wall is designed to increase its vertical height during the construction process. 本发明涉及一种用于生产三维工件的装置。装置包括用于接纳原料粉末的承载器和辐射单元，辐射单元用于利用电磁辐射或粒子辐射对被施加到承载器上的原料粉末进行选择性地辐射，以便通过逐层生成构造工艺在承载器上生产由原料粉末制成的工件。装置还包括竖直移动装置和筒构造壁，该竖直移动装置被设计成使辐射单元相对于承载器竖直地移动，该筒构造壁基本上竖直地延伸并且构成被施加到承载器上的原料粉末的侧