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首页> 外文期刊>Journal of Imaging Science and Technology >Experimental Study of the Influence of Nozzle Defects on Drop-on-Demand Ink Jets
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Experimental Study of the Influence of Nozzle Defects on Drop-on-Demand Ink Jets

机译：喷嘴缺陷对按需喷墨的影响的实验研究

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摘要

The effects of nozzle defects on the behavior of drops ejected from drop-on-demand printheads were studied. Nozzles in two types of commercial printheads were modified with two different micromachining techniques: focused ion beam (FIB) milling and pulsed laser micromachining. Nozzles were modified by producing single or multiple notches on their edges. The studies focused on the volume, speed, and direction of travel of the drops. Fifteen different types of geometrical defects on nozzles were studied. Shadowgraph images were used to determine the drop size, speed, and trajectory from the same nozzles before and after modification. The results indicate that geometrical defects up to ～ 100 μm~2 at the front (exit) face of a 50 μm diameter tapered nozzle do not cause any significant variation in the behavior of these nozzles, but that defects at the back (entry) of the nozzle can have a major effect on the direction of jetting.
机译：研究了喷嘴缺陷对从按需滴式打印头喷出的液滴行为的影响。使用两种不同的微加工技术对两种类型的商用打印头的喷嘴进行了修改：聚焦离子束（FIB）铣削和脉冲激光微加工。通过在其边缘上产生单个或多个凹口来修改喷嘴。研究集中于液滴的体积，速度和行进方向。研究了喷嘴上的15种不同类型的几何缺陷。阴影图图像用于确定修改前后来自相同喷嘴的墨滴大小，速度和轨迹。结果表明，在直径为50μm的锥形喷嘴的前（出口）面处，几何缺陷高达〜100μm〜2不会导致这些喷嘴的性能发生任何显着变化，而在喷嘴的背面（入口）则存在缺陷。喷嘴会对喷射方向产生重大影响。

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  • 来源
    《Journal of Imaging Science and Technology》 |2011年第4期|p.040305.1-040305.7|共7页
  • 作者

    Jose Rafael Castrejon-Pita; Graham D. Martin; Ian M. Hutchings;

  • 作者单位

    Institute for Manufacturing, University of Cambridge, Cambridge CB3 OFS, United Kingdom;

    Institute for Manufacturing, University of Cambridge, Cambridge CB3 OFS, United Kingdom;

    Institute for Manufacturing, University of Cambridge, Cambridge CB3 OFS, United Kingdom;

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