With the mindset of the thermal analysis on 3D printer nozzle system based on FDM technology,and by means of ANSYS Workbench finite element analysis method,a thermal analysis of the nozzle system was conducted for a total of 9 comparison schemes,including two different materials,two different throat cross-sectional areas,and five ring groove widths.The results show that the maximum deformation occurs at the nozzle outlet,with the highest temperature at the contact area and the lowest temperature at the upper and lower limit positions,stainless steel material is more conducive to the temperature distribution of the throat,nozzles with throat grooves can reduce the heat loss of the nozzle,a reasonable aspect ratio is more conducive to the heat dissipation of the throat.
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