基于FDM工艺结构的3D打印机高温喷头结构优化研究

打印机喷头结构不合理,会出现温度场分布不均现象,导致喷头堵塞,影响打印速度.为此,本文提出基于FDM工艺结构的3D打印机高温喷头结构优化研究.设计三维CAD模型,控制喷头移动,结合喷头结构,计算热传导遵循的傅里叶定律与稳定热传导规律;从模型"台阶效应"、挤出丝材两方面探究影响喷头打印效果的主要因素,在确保打印质量前提下...

Research on Structure Optimization of 3D Printer High Temperature Nozzle Based on FDM Process Structure

The unreasonable structure of the printer's nozzle leads to the uneven distribution of the temperature field,which leads to the blockage of the nozzle and affects the printing speed.For this reason,this paper proposes a study on the structure optimization of 3D printer high temperature nozzle based on FDM process structure,designs three-dimensional CAD model,controls the movement of the nozzle,combines the nozzle structure,calculates the Fourier law and stable heat conduction law that the heat conduction follows;explores the main factors that affects the printing effect of the nozzle from two aspects of the model"step effect"and extruded wire material,before ensuring the printing quality,it uses the magnetic refrigeration method,after many debugging,determines the best pressure value,and optimizes the wire feeder.The refrigeration device is designed to optimize the structure of high-temperature nozzle.The simulation results show that the optimized temperature distribution of high-temperature nozzle is more reasonable,which can effectively avoid nozzle blockage and achieve high-speed continuous printing.