高压静电辅助聚合物熔融沉积快速成型工艺  

High Voltage Electrostatic Assisted Rapid Prototyping Technology for Polymer Melt

作　　者：马昊鹏 焦志伟[1] 李荣军 向声燚 杨卫民[1] Ma Haopeng;Jiao Zhiwei;Li Rongjun;Xiang Shengyi;Yang Weimin(Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《工程塑料应用》2018年第7期57-61,共5页Engineering Plastics Application

基　　金：广东省科技计划项目(2016B090915001);宁波市产业技术创新及成果产业化重大项目(2013B10041)

摘　　要：提出一种高压静电辅助聚合物熔体快速成型工艺,在现有熔融沉积成型(FDM)技术基础上加以高压静电场作用细化熔丝,并研究施加电压、打印温度、打印距离、打印速度等工艺参数对沉积熔丝直径的影响,以实现低成本高精度快速成型。通过正交实验法分析得知,随着打印速度、施加电压及打印温度的增加,沉积熔丝直径相应减小;随着打印距离的增大,沉积熔丝直径增大。基于PLA材料试验得知,当施加电压7 k V,打印距离1 mm,打印速度为50 mm/s,打印温度240℃时,沉积熔丝直径最小,可达82μm,且施加电压对熔丝直径影响程度最大。研究结果为低成本微米级聚合物增材制造提供一种可行且稳定的技术方案及相关工艺的理论分析。A high voltage electrostatic assisted melt rapid prototyping process was proposed. High voltage electrostatic devices were applied on the FDM technology to research the effect of applied voltage,bipolar distance,printing speed and other process parameters on the diameter of deposited fuse to achieve the rapid prototyping with high precision and low cost. Through the analysis of the orthogonal test method,the conclusion is drawn that with the increase of printing speed,applied voltage and printing temperature, the diameter of deposited fuses decreases correspondingly ; with the increase of bipolar distance, the diameter of deposited fuses increases; when the applied voltage is 7 kV, the printing distance is 1 mm, the printing speed is 50 mm /s, and the printing temperature is 240℃, the diameter of deposited fuse is the smallest, and the voltage has the greatest infiuence on the fuse diameter. The study provides a viable and stable technical solution for low-cost micron scale polymer additive manufacturing and the theoretical basis for related processes.

关 键 词：高压静电 快速成型 工艺参数 微米级制造 熔丝直径 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]