HelixJet: An innovative plasma source for next‐generation additive manufacturing (3D printing),Plasma Processes and Polymers

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HelixJet: An innovative plasma source for next‐generation additive manufacturing (3D printing)
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2019-08-12 , DOI: 10.1002/ppap.201900099
Jan Schäfer ₁ , Antje Quade ₁ , Kerry J. Abrams ₂ , Florian Sigeneger ₁ , Markus M. Becker ₁ , Candice Majewski ₃ , Cornelia Rodenburg ₂

Affiliation

A novel plasma source (HelixJet) for use in additive manufacturing (AM)/3D printing is proposed. The HelixJet is a capacitively coupled radio frequency plasma with a double‐helix electrode configuration that generates a surprisingly stable and homogeneous glow plasma at low flow rates of argon and its mixtures at atmospheric pressure. The HelixJet was tested on three polyamide powders usually used to produce parts by laser sintering, a powder‐based AM process, to form local deposits. The chemical composition of such plasma‐printed samples is compared with thermally produced and laser‐sintered samples with respect to differences in morphology that result from the different thermal cycles on several length scales. Plasma prints exhibit unique features attributable to the nonequilibrium chemistry and to the high‐speed heat exchange.

中文翻译：

HelixJet：用于下一代增材制造（3D 打印）的创新等离子体源

提出了一种用于增材制造 (AM)/3D 打印的新型等离子体源 (HelixJet)。HelixJet 是一种电容耦合射频等离子体，具有双螺旋电极配置，可在常压下氩及其混合物的低流速下产生令人惊讶的稳定和均匀的辉光等离子体。HelixJet 在三种通常用于通过激光烧结（一种基于粉末的 AM 工艺）生产零件的聚酰胺粉末上进行测试，以形成局部沉积物。将这种等离子印刷样品的化学成分与热生产和激光烧结样品的化学成分进行比较，以了解由于几个长度尺度上的不同热循环导致的形态差异。由于非平衡化学和高速热交换，等离子打印表现出独特的特征。

更新日期：2019-08-12

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