Foundry sand mold microdroplet jetting and high-energy beam composite forming method and device

• Main Authors: GUO ZHI, SHAN ZHONGDE, YANG GAOYANG, WANG SHAOZONG, RAN YUELONG
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• 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; CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

The invention belongs to the field of additive manufacturing, and discloses a casting sand mold micro-droplet jetting and high-energy beam composite forming method and a casting sand mold micro-droplet jetting and high-energy beam composite forming device. The method comprises the steps that roughing sand for 3D printing is mixed with a curing agent in advance, the roughing sand mixed with the curing agent is evenly laid on a liftable working platform through a sand laying device, a computer controls a printing spray head to spray a binder according to section information of a current layer of a model, and printing forming of a pattern of the current layer is completed. Then driving a high-energy beam system to scan along the inner and outer contours of the section pattern of the current layer, and heating and ablating the sand mold sprayed with the binder to finish the accurate forming of the pattern of the current layer; and then the computer drives the working platform to descend for a fixed layer thicknes