机械

FDM型3D打印机通过熔融沉积的方式打印成型,打印过程中喷头部分的温度场受结构设计和冷却系统影响,在打印过程中易出现温度分布不均匀的现象,进而出现堵料问题,影响打印过程正常进行。利用CAE温度场仿真软件对FDM型3D打印机喷头三维模型进行温度场仿真,得出3D打印机喷头加热块、喷嘴以及喉管和散热铝块的温度场分布。根据温度场仿真结果,为喷头冷却系统的设计和优化提供理论依据,进而提高FDM型3D打印机的打印连续性、效率以及打印工件的表面质量。

In the printing forming process of FDM(Fused Deposition Molding) 3 D printer, the temperature field of printer nozzle is affected by the design of the structure and the cooling system. The FDM 3 D printer nozzles tend to have the problems of uneven distribution of temperature and plugging material, which will influence the normal printing process. The temperature field of FDM 3 D printer was simulated by using CAE temperature field simulation software. Therefore, the temperature field distribution of nozzle heating block, nozzle and throat tube, and cooling aluminum block is obtained. The simulation results of temperature field provides the theoretical basis for designing and optimizing sprinkler cooling system, which can also improve the printing continuity, efficiency and surface quality of FDM 3 D printers.