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The warm powder compaction process is simulated by the finite element analysis soft- ware,MSC/MARC.The thermal mechanically coupled analysis method is applied on the basis of the updated Lagrangian Method,to simulate the warm powder compaction process.The warm powder compaction process is simulated,and the influence of fric- tion condition and pressing styles are researched on the density of powder green and the mechanics behavior at certain temperature.The results indicate that for cylindrical compacts,with the improvement of the friction condition,the uniformity of distribu- tion of green relative density is largely improved,the pressing force and stress decrease, and the nonconforming pressing processes influence the distribution of green density to some degree.The status of stress distribution of the process that punches firstly press and die finally press is different from the other three processes,and presents the figure of‘flume’.
The warm powder compaction process is simulated by the finite element analysis soft ware, MSC / MARC. The thermal mechanically coupled analysis method is applied on the basis of the updated Lagrangian Method, to simulate the warm powder compaction process. The warm powder compaction process is simulated, and the influence of fric- tion condition and pressing styles are researched on the density of powder green and the mechanics behavior at certain temperature. The results indicate that for cylindrical compacts, with the improvement of the friction condition, the uniformity of distribu - tion of green relative density is substantially improved, the pressing force and stress decrease, and the nonconforming pressing processes influence the distribution of green density to some degree. The status of stress distribution of the process that punches first press and die finally press is different from the other three processes, and presents the figure of’flume ’.