The typical structure of a fused deposition nozzle is optimized to address silk scattering and clogging when printing continuous fiber prepreg filaments.Finite element technology is applied to conduct temperature field simulation modeling and analyze the relationship between the temperature field distribution of the printhead structure and four key parameters which embody the thickness of the heating block,the length of the throat between the top layer of the heating block and the top layer of the heat sink,the length of the heat sink,and the diameter of the heat sink.The results indicate that reducing the thickness of the heating block and the length of the throat between the top layer of the heating block and the bottom layer of the heat sink and increasing the diameter of the heat sink can improve heat dissipation efficiency,reduce printing pressure,and solve the problems of silk scattering and clogging during the printing process of continuous fiber prepreg filaments.
关键词
熔融沉积/连续纤维/喷头/温度场仿真
Key words
fused deposition modelling/continuous fiber/nozzle/temperature field simulation
维普
万方数据