Abstract：Powder transfer can be achieved without preloading on hydraulic CNC powder press , that is to say powder can transfer to any position and not to be deformated, Therefore this function ensures the density uniformity of forming multi-step complex parts. In this paper, a simulation analysis of the density distribution of the green compact under different transfer position was carried out using the finite element software- DEFORM. Optimization the location of powder transfer and the pressing parameters, and the improvement of the uniformity of density distribution were realized through the numerical simulation analysis. It proves that the optimal design can satisfy the accuracy, density and performance requirements for the sprocket manufactured by the advanced net forming method of powder metallurgy.
2020, Vol. 30 
