Double-scraper fine powder laying device for additive manufacturing and method of double-scraper fine powder laying device

• Main Authors: LI ZHONGQUAN, DENG ZHUJUN, KE LINDA, YANG CHANGQI, XU JINTAO, XIAO MEILI, YAO FEI, AI BAIYUN
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2017
• 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 discloses a double-scraper fine powder laying device for an additive manufacturing process. According to the double-scraper fine powder laying device for the additive manufacturing process, a double-scraper powder laying manner is designed for powder laying; each scraper is in a special design of the geometric size as well as a specific installation angle, and the micron level, even the submicron level, powder laying is achieved; and the thickness of the laid powder layer can reach 1 micrometer to 10 micrometers. By the adoption of the double-scraper fine powder laying device for the additive manufacturing process, the defect that by means of traditional roller type powder laying and scraper type powder laying, a powder layer with the thickness below 20 micrometers cannot be achieved during fine powder laying is overcome, so that the high-precision additive manufacturing of a fine structural component is achieved, and the size resolution and the surface quality of additive manufacturing parts ar