工艺参数对气动式喷射成型三维打印沉积线质量的研究

Study on the Quality of Three-dimensional Printing Sedimentary Line of Pneumatic Injection Molding by Process Parameters

基于气动式喷射成型技术,运用单一变量实验方法,采用聚二甲基硅氧烷为实验材料,通过研究沉积路径成型过程中与打印温度、驱动气压、喷头移动速度等工艺参数,得到如下结论:第一,对温度进行研究,结果表明当温度过低时会造成沉积路径过宽,随着温度不断增大,沉积路径宽度与温度之间存在一个比例关系;第二,对驱动气压研究分析发现,当驱动气压过小时,会造成沉积路线不完整,但当气压逐渐增大,沉积路径宽度与驱动气压存在一定关系;第三,对喷头移动速度研究发现速度过高或过低都会引起打印精度降低,造成沉积路线不完整或沉积路径过宽。

Based on the pneumatic injection molding technology, using a single variable experimental method and using polydimethylsiloxane as the experimental material, the following conclusions were obtained by studying the process parameters of the deposition path and the printing temperature, driving pressure, and nozzle moving speed: First, the temperature is studied. The results show that when the temperature is too low, the deposition path is too wide. As the temperature increases, there is a proportional relationship between the width of the deposition path and the temperature. Second, the analysis of the driving pressure is found. When the driving air pressure is too small, the deposition route will be incomplete, but when the air pressure is gradually increased, the deposition path width has a certain relationship with the driving air pressure. Third, the research on the moving speed of the nozzle shows that the speed is too high or too low, which will cause printing accuracy. Lower, resulting in incomplete deposition routes or excessively wide deposition paths.