基于ANSYS Icepak的FDM 3D高温打印机喷头散热优化研究  

Heat Dissipation Optimization of FDM 3D High Temperature Printer Nozzle Based on ANSYS Icepak

作　　者：袁平 谢焯俊 张泽 方辉[1] YUAN Ping;XIE Zhuojun;ZHANG Ze;FANG Hui(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学机械工程学院,四川成都610065

出　　处：《机械》2021年第11期10-16,共7页Machinery

基　　金：四川省重大科技专项课题(2018GZDZX0018);四川大学青岛研究院科技开发项目(18GZ30201)。

摘　　要：FDM打印中,不合理的温度场分布会导致喷头堵塞和物料供给不通畅,最终影响打印质量。针对此问题,提出了一种喷头散热优化方案,在原有喷头结构上采用风扇对喷头关键区域进行集中散热。分别对优化前后的喷头进行热力学仿真实验和打印实验,对比结果表明:优化后的喷头温度场分布有明显改善,喉管关键区域温度有明显下降,在显微镜下观察打印件结构,打印质量有显著提高。In FDM printing,unreasonable temperature field distribution will cause nozzle blockage and unsmooth material supply,which will ultimately affect the print quality.Aiming at solving this problem,a nozzle heat dissipation optimization scheme is proposed.Based on the original nozzle structure,fans are used to centrally dissipate heat in key areas of the nozzle.The thermodynamic simulation experiments and printing experiments were carried out on the nozzles before and after optimization.The comparison results show that the temperature field distribution of the optimized nozzles has been significantly improved,and the temperature of the key areas of the throat has significantly decreased.By observing the structure of the print under a microscope,it is found that the print quality is significantly improved.

关 键 词：高温FDM喷头 散热优化 温度场 ANSYS 喉管 

分 类 号：TH16[机械工程—机械制造及自动化]