颗粒料FDM打印机成型性能实验研究  

Experimental Investigation on the Molding Performances of Granular FDM Printer

作　　者：刘文文 姚山 杨科 LIU Wen-wen;YAO Shan;YANG Ke(School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China;Mechatronics Engineering,Shanxi Institute of Energy,Jinzhong 030600,China)

机构地区：[1]大连理工大学材料科学与工程学院,辽宁大连116024 [2]山西能源学院机电工程系,山西晋中030600

出　　处：《塑料工业》2021年第7期66-70,80,共6页China Plastics Industry

摘　　要：基于颗粒料的熔融沉积制造技术(FDM)可以有效解决常规丝材FDM技术成型幅面小、原料单一以及成本高的问题。以丙烯腈-丁二烯-苯乙烯塑料(ABS)为原料,采用自主设计的颗粒料FDM打印机进行成型性能实验研究。结果表明:在170~220℃之间,该颗粒料FDM打印机可以有效挤出成型;打印机U轴旋转一周,成型温度与挤出丝材的长度成正比,与其直径成反比;而挤出速度与成型温度对丝材的影响作用相左;出丝比例系数在0.45~0.5时,其对样件精度影响不明显,出丝比例系数的最优值为0.465;打印样件拉伸强度和弯曲强度随着成型温度的升高而增大。Fused deposition modeling(FDM)based on pellets could effectively solve the problems of conventional wire FDM technology with small forming size,single raw material,and high cost.A pellet FDM printer was designed,and the molding performance was studied using acrylonitrile butadiene styrene(ABS)as raw materials.The results show when the temperature is between 170~220℃,the pellet FDM printer can effectively extrude.The U-axis of the printer rotates a circle,and the molding temperature is proportional to the length of the extruded filament and is inversely proportional to its diameter.The extrusion speed is contrary to the effect of forming temperature on the wire material.When the wire output ratio coefficient is changed from 0.4 to 0.5,the sample accuracy changes slightly,and the optimal value of the wire output ratio coefficient is 0.465.The tensile strength and bending strength of the printed sample increase with increasing molding temperature.

关 键 词：颗粒料 熔融沉积制造 成型性能 实验研究 

分 类 号：TQ320[化学工程—合成树脂塑料工业]