Resign blade used in low speed research compressor of aeroengine injection molding process is complex. The precision of blade forming is determined by the cavity and technological parameters. In order to explore the influence of technological parameters and their interaction on blade forming precision. Twice-analysis method of the main technological parameters of the compressor blade injection molding is studied in this paper. Firstly

the influence of technological parameters such as melt temperature

mold temperature on blade deformation is studied based on factorial experiment. Then

the influence rule of the main process parameters and their interaction on blade deformation is revealed based on the response surface method. The results of simulation experiments show that packing time

the interaction of packing time and melt temperature are the significant factors to blade deformation.