Electric arc additive forming prediction modeling method based on molten drop transition
The invention provides an electric arc additive forming prediction modeling method based on molten drop transition, and relates to an electric arc additive forming process numerical calculation modeling method. According to the modeling method, the molten pool flow field calculation and a molten dro...
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| creator | CHEN JICHENG OU WENMIN CAI JIASI ZHAO WENYONG LIU RENPEI WEI YANHONG |
| description | The invention provides an electric arc additive forming prediction modeling method based on molten drop transition, and relates to an electric arc additive forming process numerical calculation modeling method. According to the modeling method, the molten pool flow field calculation and a molten drop transition process are coupled, a computational domain is updated by adopting a dynamic grid technology and considering the movement of a welding gun, and transportation equations are uniformly solved in a molten pool computational domain and a molten drop transition computational domain, so thatthe simulation prediction of electric arc additive manufacturing forming morphology, temperature field and flow field is achieved, and the problems that the size of an existing arc additive cladding layer cannot be predicted and the physical field evolution is not clear are solved. The method is implemented through the following steps of 1, establishing a material and geometric model, and definingthe computational domain |
| format | Patent |
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According to the modeling method, the molten pool flow field calculation and a molten drop transition process are coupled, a computational domain is updated by adopting a dynamic grid technology and considering the movement of a welding gun, and transportation equations are uniformly solved in a molten pool computational domain and a molten drop transition computational domain, so thatthe simulation prediction of electric arc additive manufacturing forming morphology, temperature field and flow field is achieved, and the problems that the size of an existing arc additive cladding layer cannot be predicted and the physical field evolution is not clear are solved. 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According to the modeling method, the molten pool flow field calculation and a molten drop transition process are coupled, a computational domain is updated by adopting a dynamic grid technology and considering the movement of a welding gun, and transportation equations are uniformly solved in a molten pool computational domain and a molten drop transition computational domain, so thatthe simulation prediction of electric arc additive manufacturing forming morphology, temperature field and flow field is achieved, and the problems that the size of an existing arc additive cladding layer cannot be predicted and the physical field evolution is not clear are solved. The method is implemented through the following steps of 1, establishing a material and geometric model, and definingthe computational domain</abstract><oa>free_for_read</oa></addata></record> |
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| 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 CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | Electric arc additive forming prediction modeling method based on molten drop transition |
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