计算机应用与软件2024，Vol.41Issue(7)：61-66,6.DOI:10.3969/j.issn.1000-386x.2024.07.010
FDM连续挤压成型过程中温度场的有限元分析
FINITE ELEMENT ANALYSIS OF TEMPERATURE FIELD IN FDM CONTINUOUS EXTRUSION PROCESS
摘要
Abstract
Aimed at the problem of complex calculation and heavy workload in describing metal flow deformation by dynamic remeshing method in fused deposition modeling(FDM),a finite element analysis method for temperature field in FDM continuous extrusion process is proposed.By using the successive element method to analyze the stress of the fuse in the extrusion groove,the heat flux on each contact surface of the aluminum wire and the groove was determined,and the mathematical model of the finite element analysis of the temperature field was established.The heat flux equivalent method was used to analyze the metal flow deformation,which could reduce the calculation time and improve the CPU utilization.The temperature field in the extrusion nozzle was simulated by using the finite element analysis software,and the contour map of the temperature field in the extrusion groove at different speeds was obtained.The simulation results show that the temperature field is evenly distributed and the overall state is stable during the extrusion forming process,which ensures the forming quality.After the improvement,the program running time is reduced by 30.9％,and the CPU utilization is optimized by 17.3％.关键词
温度场计算机仿真/回转式FDM挤出喷头/热流密度/热力耦合分析Key words
Computer simulation of temperature field/FDM rotary extrusion nozzle/Heat flux/Thermal coupling analysis分类
信息技术与安全科学引用本文复制引用
卫朝霞,徐艳..FDM连续挤压成型过程中温度场的有限元分析[J].计算机应用与软件,2024,41(7):61-66,6.基金项目
国家自然科学基金项目(61472067). （61472067）
