A DoD Injector Applicable to High-Viscosity Materials in High-Temperature

Lee, Taik Min; Kang, Tae Goo; Yang, Jeong Soon; Kim, Dong Soo; Jo, Jeongdai; Choi, Byung Oh; Kim, Kwang Young

doi:10.4028/0-87849-415-4.1391

Cited by 1 publication

(5 citation statements)

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“…Since the voltage (V), duty cycle (%), and the amplitude (mm) of the actuation have a direct effect over the droplet velocity and the diameter, the experiments were set based on these three parameters. [6][7][8]10,12 The ejection conditions for the generator have been presented in Table 2. At this point, it should be noted that rather than finding the value of the We number, examining the effect of the change in these two parameters on the droplet formation is prioritized.…”

Section: The Droplet Generation Processmentioning

confidence: 99%

“…In addition, having changeable parts and descriptive explanation of the piston tip geometry over the impact region were some of solid novelties of these studies. 7,8 Owing to the preliminary achievements, droplet generators are gaining popularity for various applications today. For the fields of both rapid prototyping and miniaturization in the metal industry, the droplet deposition is a promising methodology when the input parameters and the droplet properties are characterized in harmony.…”

Section: Introductionmentioning

confidence: 99%

“…However, the material feeding is either discontinuous 6,30 or additional heating and control applications are needed in such systems. 7,8,[13][14][15] So far, in the aforementioned studies, it has been noticed that there is a lack of knowledge about necessary amount of feeding that will ensure continuous droplet formation with mechanical impulses with the absence of inert gas assistance. For these purposes, a novel droplet generation system based on the drop-on-demand concept is presented in this study.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, having changeable parts and descriptive explanation of the piston tip geometry over the impact region were some of solid novelties of these studies. 7,8…”

Section: Introductionmentioning

confidence: 99%

“…However, the material feeding is either discontinuous 6,30 or additional heating and control applications are needed in such systems. 7,8,13–15…”

Section: Introductionmentioning

confidence: 99%

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Sustainable metal droplet formationviaopen-source, cost-effective, and modifiable droplet generator

Korkut

Yavuz

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this study, a metal droplet generator developed with an open-source concept is presented. The continuous droplet generation process was achieved without inert gas assistance. Owing to this desktop device, which is proposed as an alternative to high-cost metal printing devices, users can achieve stable droplets continuously at low costs. Taking into account the pressure balance inside the melting region, the necessary amount of a metal wire feed was first revealed. The droplets generated which are in good agreement with the theoretical calculations were then ejected via mechanically restricted vibrational impacts. The reproducibility of the system was also tested. The droplet formation stages were classified, and the stable parameter groups were revealed in accordance with the measurements. Moreover, the wire type material feeding issue in metal droplet generators, which were insufficiently studied so far, has also been examined. A dynamic feeder mechanism was introduced in detail. In conclusion, Ball Grid Array deposition and functional circuit printing have been successfully achieved. This study on a continuous metal droplet formation is also important for future studies because the structure of the device is easily accessible and modifiable.

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Section: The Droplet Generation Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In addition, having changeable parts and descriptive explanation of the piston tip geometry over the impact region were some of solid novelties of these studies. 7,8…”

Section: Introductionmentioning

confidence: 99%

“…However, the material feeding is either discontinuous 6,30 or additional heating and control applications are needed in such systems. 7,8,13–15…”

Section: Introductionmentioning

confidence: 99%

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