Abstract: A co-simulation technology of casting-forging combination forming process was developed. Initial nonuniform cas-ting grain size was obtained from CAFE module of ProCAST software by casting simulation. A Fortran program was compiled as a function module of Deform-3D software to establish the coupling between the initial nonuniform casting grain size distribution and the Deform-3D forging model. The simulation of microstructure evolution during the forging process was realized though the secondary development of Deform-3D software. Finally, the distribution of dynamic recrystallized grain size and dynamic recrystallization vo-lume fraction could be predicted. The casting-forging combination forming of the cutting pick body was simulated by the developed co-simulation technology. The distribution of dynamic recrystallized grain size and dynamic recrystallization volume fraction of the two models, one model with initial uniform grain size, another with initial nonuniform grain size form the casting simulation, were acquired respectively. The feasibility of co-simulation technology of casting-forging combination forming process for grain distribution prediction was proved by the comparison result analysis.
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2017, Vol. 31 
