電流體動力噴射3D打印工藝參數對泰勒錐和打印圖形的影響和規律

鄒淑亭; 蘭紅波; 錢壘; 趙佳偉; 周賀飛; 朱曉陽; 張廣明; 彭子龍

doi:10.13374/j.issn2095-9389.2018.03.014

電流體動力噴射3D打印工藝參數對泰勒錐和打印圖形的影響和規律

doi: 10.13374/j.issn2095-9389.2018.03.014

青島理工大學青島市3D打印工程研究中心, 青島 266520

基金項目:

國家自然科學基金資助項目(51775288,51375250)

青島市創新領軍人才資助項目(13-CX-18)

詳細信息

中圖分類號: TH164
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出版歷程
- 收稿日期: 2017-05-31

Effects and rules of E-jet 3D printing process parameters on Taylor cone and printed patterns

Qingdao Engineering Research Center for 3D Printing, Qingdao University of Technology, Qingdao 266520, China

摘要

摘要: 電流體動力噴射3D打印是一種新型微納增材制造技術,它具有成本低、結構簡單、精度高、打印材料廣泛等突出特點和優勢.但是,由于電流體動力噴射3D打印的打印速度快、噴嘴和基底打印距離小,特別是對于微尺度特征圖形的打印,其實際圖形及打印質量難以直接觀測,而且影響打印圖形精度和質量的工藝參數較多,各個工藝參數相互耦合和相應作用.因而直接有效的控制打印圖形的精度(線寬)和質量(線邊緣粗糙度)是其面臨的一個挑戰性難題.本文提出一種通過調整打印工藝參數間接控制泰勒錐形狀和尺寸,進而實現對于打印圖形精度和質量有效控制的新方法.建立了線寬與工藝參數、材料性能和基底關系的理論模型;通過實驗,系統研究并揭示了電流體動力噴射3D打印工藝參數對泰勒錐和打印圖形的影響及其規律;優化出針對同一噴嘴較為理想的噴印工藝窗口;并通過典型實驗工程案例研究,采用內徑60 μm噴嘴實現了最小線寬3 μm打印,驗證了實驗研究結果的正確性和有效性.本文提出的方法和實驗研究結果為電流體動力噴射3D打印的打印精度、圖形質量和打印穩定性改進及提高奠定了基礎,并為簡化和易于操作提供了一種切實可行的方法.
- 電流體動力噴射3D打印 /
- 泰勒錐 /
- 錐射流 /
- 微納增材制造 /
- 工藝優化
Abstract: Electrohydrodynamic jet 3D printing is an emerging and promising technology of microand nano-scale additive manufacturing with a low cost and high resolution, as well as a wide range of printed materials. However, due to the high printing speed and small standoff height between the nozzle and the substrate, it is especially difficult to directly observe and measure the printed patterns. Furthermore, there are many process parameters that affect the printing accuracy and quality, among which each parameter is coupling and interacting. This paper proposed a method of controlling the accuracy and quality of printed patterns based on the regulation of the shape and size of the Taylor cone by varying the process parameters. A theoretical model was then derived and established that describes the relationship between the line width printed with process parameters, printed material, and used substrate. Through the systematic experimental study, the influences and rules of the printing process parameters on the Taylor cone and printed patterns were revealed; Furthermore, the ideal jet printing window for the same nozzle was optimized. Finally, the feasibility and validity of the experimental results were demonstrated by the typical engineering cases, and a pattern of minimum line width of 3 μm was achieved with the nozzle diameter of 60 μm. The proposed method and experimental results provide a basis for further improving the accuracy, quality, and stability for electrohydrodynamic jet 3D printing, and the method offers a feasible solution for simplification and easy operation of actual 3D printing.
- electrohydrodynamic jet 3D printing /
- Taylor cone /
- cone-jet /
- microand nano-scale additive manufacturing /
- process optimization

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參考文獻(15)

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