基于轴芯材料可切换的同轴3D打印技术及应用研究*

doi:10.16731/j.cnki.1671-3133.2024.10.004

现代制造工程 ›› 2024, Vol. 529 ›› Issue (10): 24-30.doi: 10.16731/j.cnki.1671-3133.2024.10.004

基于轴芯材料可切换的同轴3D打印技术及应用研究^*

曹艳兵¹, 徐嘉文¹, 于江云¹, 陈鹏¹, 朱阿祥¹, 张亚玲², 刘禹¹

1 江南大学机械工程学院,无锡 214122;
2 中国工程物理研究院化工材料研究所,绵阳 621900

收稿日期:2024-01-22 发布日期:2024-10-29
通讯作者: 刘禹,教授,博士生导师,主要研究方向为精密机电一体化与装备自动化、器件增材制造与柔性传感器、智能仪器仪表与运动控制、软材料、表面工程与微纳米技术。E-mail:yu.liu@vip.163.com
作者简介:曹艳兵,硕士研究生,主要研究方向为多材料直书写3D打印。E-mail:346072239@qq.com
基金资助:
^*国家自然科学基金项目(51875253,22075258)

Research on coaxial 3D printing technology and application based on switchable shaft core material

CAO Yanbing¹, XU Jiawen¹, YU Jiangyun¹, CHEN Peng¹, ZHU Axiang¹, ZHANG Yaling², LIU Yu¹

1 School of Mechanical Engineering,Jiangnan University,Wuxi 214122,China;
2 Institute of Chemical Materials,China Academy of Engineering Physics(CAEP),Mianyang 621900,China

Received:2024-01-22 Published:2024-10-29

摘要/Abstract

摘要： 目前,主流的直书写3D打印多材料打印方法是通过设计多个入口挤入汇合到单个出口挤出的喷头,材料按照需要有机地结合在一起,实现不同性能的组合。但是,多材料增材制造需要各材料之间具有优异的黏合强度,同时需要材料参数满足高黏度和剪切变稀的特性以符合3D打印的各项要求。为了实现多材料的连续稳定性打印,通过设计一种轴芯材料具有快速切换功能的同轴挤出3D打印喷头及其打印系统,研究多材料同轴打印原理及打印实验。CCM3D喷头允许不同流变特性的轴芯材料稳定地选择性挤出,实现多材料同轴制造。通过生成多材料G代码进行打印,展示了轴芯两种不同黏性材料之间的快速切换以及2D图像的打印,利用同轴多材料的打印优势,将不同弹性模量的硅胶选择性嵌入同轴线条轴芯,展示了其打印3D模型的能力。

关键词: 多材料增材制造, CCM3D喷头, 流变特性, 2D图案, 3D模型

Abstract: Currently,the mainstream method for direct-writing multi-material 3D printing involves designing a nozzle with multiple inlets to converge into a single outlet,where materials are extruded and organically bond together to achieve a combination of different properties. However,multi-material additive manufacturing requires excellent bonding strength between materials,and the material parameters must meet the requirements of high viscosity and shear-thinning characteristics for 3D printing.In order to achieve continuous and stable printing of multiple materials,the principle of multi-material coaxial printing and experimental printing using a Coaxial Core Multi-material 3D printing (CCM3D) nozzle with a core material that has a rapid switching function was studied. The CCM3D nozzle allows for the stable selective extrusion of core materials with different rheological properties,enabling multi-material coaxial manufacturing. By generating multi-material G-code for printing,the rapid switching between two different viscosity core materials and the printing of 2D patterns are demonstrated. Taking advantage of the benefits of coaxial multi-material printing,silicone with different elastic moduli is selectively embedded into the coaxial core,showcasing its capability to print 3D models.

Key words: multi-material additive manufacturing, CCM3D nozzle, rheological characteristics, 2D patterns, 3D models

中图分类号:

TB324

曹艳兵, 徐嘉文, 于江云, 陈鹏, 朱阿祥, 张亚玲, 刘禹. 基于轴芯材料可切换的同轴3D打印技术及应用研究^*[J]. 现代制造工程, 2024, 529(10): 24-30.

CAO Yanbing, XU Jiawen, YU Jiangyun, CHEN Peng, ZHU Axiang, ZHANG Yaling, LIU Yu. Research on coaxial 3D printing technology and application based on switchable shaft core material[J]. Modern Manufacturing Engineering, 2024, 529(10): 24-30.

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基于轴芯材料可切换的同轴3D打印技术及应用研究^*

Research on coaxial 3D printing technology and application based on switchable shaft core material

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