Method for preparing aluminum alloy micro-channel part with corrugated inner wall

• Main Author: ZHANG DAICONG
• Format: Patent
• Language: Chinese; English
• Published: 09.09.2022
• 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 provides a method for preparing an aluminum alloy micro-channel part with a corrugated inner wall, which comprises the following steps of: building an oxidation model of molten aluminum and a pressure fluctuation conduction model in the molten aluminum and jet flow, spraying aluminum micro molten drops, remelting and stacking a plurality of aluminum micro molten drops to form a part under the condition that a micro-channel structure is not supported, and then carrying out heat treatment on the part to obtain the aluminum alloy micro-channel part with the corrugated inner wall. And surface quality detection is carried out on the formed part. And determining influence factors of unbalanced thermal stress on deformation of the part in the micro-channel forming process, and controlling deformation of the part according to the influence factors. And finally, according to the multi-scale forming parameters of the inner wall corrugated microchannel and the interaction effect of all the parameters, prin