摘要
介绍了熔融沉积快速成形(FDM)技术的原理和工艺特点.根据杨氏方程,结合成形工艺过程,分析了熔融沉积快速成形的层间黏结机制.为实现FDM的普通原型向功能原型转变,以Creatbot 3D打印机为成形设备,选用直径为3.0mm的PLA丝材为成形耗材,研究了成形工艺参数对工件层间黏结质量的影响.层间黏结强力随喷头移动速率和层厚的增大而增大.在保证足够强力的前提下,综合考虑工件成形效率和表面质量,合理设置了成形工艺参数.
The paper introduced the forming principle and Process Characteristics of FDM rapid producing technology.According to Young's equation,the mechanism of interlayer bonding in FDM rapid production was analyzed combined with forming process.In order to achieve transition from nonfunctional prototypes to functional prototypes of FDM models,using the Creatbot 3D printer and 3 mm diameter polylactic acid(PLA) filament,the influence of process parameters on the bonding quality of workpiece was studied;the experiment results indicated that adhesive strength of filament increased with the nozzle moving rate.With ensure sufficient strength,it is an effective reference for reasonable process parameters to consider the forming efficiency and surface quality.
出处
《成组技术与生产现代化》
2017年第3期43-46,共4页
Group Technology & Production Modernization
基金
河南省科技攻关计划资助项目(142102210509)
关键词
3D打印
FDM
快速成形
黏结机制
黏结质量
3D printing
fused deposition modeling
rapid prototyping
adhesion mechanism
