文献类型：期刊文献

中文题名：热塑性聚氨酯材料柔性外壳3D打印技术

英文题名：3D Printing Technology for TPU Flexible Shell

作者：高国华[1];任晗[1];王皓[1];李炼石[1];董增雅[1];夏齐霄[2]

第一作者：高国华

机构：[1]北京工业大学机械工程与应用电子技术学院;[2]北京联合大学机器人学院

第一机构：北京工业大学机械工程与应用电子技术学院,北京100024

年份：2018

卷号：44

期号：4

起止页码：497-506

中文期刊名：北京工业大学学报

外文期刊名：Journal of Beijing University of Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

基金：国家自然科学基金资助项目(51675011)

语种：中文

中文关键词：3D打印;柔性材料;热塑性聚氨酯;不粘连

外文关键词：3D printing;flexible material;thermoplastic polyurethanes;inadhesion

摘要：针对全柔性伸缩型机械臂外壳在3D打印过程中产生的不粘连现象,提出了一种通过减少工件自身压缩量从而优化整体打印效果的方法.运用Inventor三维建模软件结合Cura 3D打印软件对柔性臂外壳进行建模,并利用3D打印机对热塑性聚氨酯材料进行3D打印加工.通过观察试件的实际打印效果,对打印过程中所产生的不粘连的失效形式进行了分析与研究,在利用不同参数水平对同一试件进行打印后,发现不同参数均通过影响工件的压缩量而影响最终的打印效果.为减少工件受重力产生的压缩量,分别提出设置温差、增加散热与增加表面支撑等改进方法,并将改进后的打印效果与原打印效果进行了对比.试验结果表明:添加表面支撑的方法对提高打印效果作用最大,可以将总体不粘连率从8.2%下降到2.5%,验证了所提出改进方案的合理性.
To reduce the phenomenon of inadhesion during the process of 3D printing,a method optimizing the print effect by reducing the compression degree was presented.The model of flexible shell was generated by Inventor and Cura,and it was produced using thermoplastic polyurethanes by 3D printing.The result of 3D printing did not accord with the anticipation,the inadhesion appeared on the surface of flexible shell,and the reason was explored in this study.Using different parameters to print the same shell,a result was confirmed that they are influencing the effect of 3D printing by changing the compression of height.For reducing the compression,some optimization methods were proposed,for example:adding supporting structure,turning on the radiator and setting the difference temperatures.Results show that all the methods have some influences on improving the print effect;however,adding supporting structure has more remarkable effect,and the inadhesion of 3D printing can be reduced from 8.2%to 2.5%.The optimization effect is verified.