• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2024, Vol. 60 ›› Issue (17): 263-271.doi: 10.3901/JME.2024.17.263

• 数字化设计与制造 • 上一篇    下一篇

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吸热墨水喷射3D打印实验平台研制与自制墨水打印试验研究

孙江涛1, 张净凯1, 程坦1, 范志永1, 叶春生1, 蔡道生2, 魏青松1   

  1. 1. 华中科技大学材料成形与模具技术国家重点实验室 武汉 430074;
    2. 武汉易制科技有限公司 武汉 430074
  • 收稿日期:2023-09-06 修回日期:2024-02-23 出版日期:2024-09-05 发布日期:2024-10-21
  • 作者简介:孙江涛,男,1999年出生。主要研究方向为吸热墨水喷射3D打印高分子材料。E-mail:sjt_hust@hust.edu.cn
    魏青松(通信作者),男,1975年出生,博士,教授,博士研究生导师。主要研究方向为激光选区熔化和粘接剂喷射工艺。E-mail:wqs_xn@hust.edu.cn
    蔡道生,男,1974年出生,博士。主要研究方向为粘结剂喷射3D打印技术。E-mail:daosheng9@163.com
  • 基金资助:
    国家自然科学基金(51775207)和武汉市科技(202001062012037)资助项目。

Development of A Laboratory-scale Testbed for Heat-absorbing Ink Jetting 3D Printing and Experimental Study on Self-made Ink Printing

SUN Jiangtao1, ZHANG Jingkai1, CHENG Tan1, FAN Zhiyong1, YE Chunsheng1, CAI Daosheng2, WEI Qingsong1   

  1. 1. State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074;
    2. Wuhan Easy MFG Technology Co., Ltd., Wuhan 430074
  • Received:2023-09-06 Revised:2024-02-23 Online:2024-09-05 Published:2024-10-21

摘要: 基于吸热墨水喷射3D打印原理设计开发了实验平台,主要包括机械运动系统、喷头与供墨系统、粉床加热系统以及控制与软件系统,共四个子系统。实验平台能够对粉末床预热温度、移动加热灯功率与速度、喷墨密度等工艺过程参数进行控制,并借助红外热像仪能够实时监测粉床温度分布。在此基础之上,用商业水性黑色染料墨水与自制炭黑墨水进行了单层打印实验,发现在移动加热灯照射功率1 500 W、累计照射时间为25 s时,使用自制墨水用于打印可使成形区与非成形温度差达到46 ℃,而使用商业墨水的温度差为7.1 ℃,说明自制炭黑墨水能够显著增强高分子粉末吸收红外辐射能量的能力。该吸热墨水喷射3D打印实验平台可为新材料开发和新工艺探索提供开放式平台,并为其他类型3D打印实验平台的自主开发提供有益借鉴。

关键词: 吸热墨水喷射, 3D打印, 高分子

Abstract: The experimental platform was designed and developed according to the principle of heat-absorbing ink jetting 3D printing technology, which mainly includes four subsystems: mechanical motion system, nozzle and ink supply system, powder bed heating system, control and software system. The experimental platform can control the process parameters such as the preheating temperature of the powder bed, the power and speed of the mobile heating lamp, and printing density, and monitor the temperature distribution of powder bed in real-time with the help of infrared thermal imager. On this basis, the experiment of single-layer printing was carried out with commercial water-based black ink and self-made carbon black ink. It was found that the temperature difference between the forming zone and the non-forming zone could reach 46 ℃ when using the self-made carbon black ink under the irradiation power of the mobile heating lamp was 1 500 W and the irradiation time was 25 s, while the temperature difference of the commercial ink was 7.1 ℃. The results show that self-made carbon black ink can significantly enhance the ability of polymer powder to absorb infrared radiation energy. The heat-absorbing ink jetting 3D printing experimental platform can provide an open platform for the development of new materials and new process exploration, and provide a useful reference for the independent development of other types of 3D printing experimental platforms.

Key words: heat-absorbing ink jetting, 3D printing, polymer

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