【技術電子報】應用 CFD 模擬於 Binder Jetting

一、應用範圍

• 噴墨頭設計

• 透過塗膠機刮刀模擬鋪粉現象

• 黏合劑在粉床上的沉積、滲透，以及擴散現象

• 黏合劑在蒸發過程中的相變化與殘留物形成

二、應用說明

噴墨頭設計 Inkjet Printheads

▶案例：

Continuous inkjet printing: Used in OLEDs

https://video.wixstatic.com/video/e4baa5_0f492a29f1f549be89858948c9bae4c0/360p/mp4/file.mp4

▶案例：

Océ Technologies: Measured and simulated impact of a wetting layer on the drop formation process.

▶案例：

Kodak: Thermal bubble inkjets

https://video.wixstatic.com/video/e4baa5_b396116a207e4ad4aae5bb9d1065cc1f/360p/mp4/file.mp4

DEM – Powder Spreading

https://video.wixstatic.com/video/e4baa5_0f0b4cbb02f849ec85c41ef60b9929a8/360p/mp4/file.mp4

應用範圍:

• 移動粉末以組成粉床 (FLOW-3D General Moving Objects & DEM/Particles)

• 粉末尺寸對於粉床堆疊的影響

DEM – 考慮粉末之間的吸引力

粉末之間的濕度可能會讓粉末之間的結合力增大

DEM 模組可以考慮濕度的影響

https://video.wixstatic.com/video/e4baa5_ce8d57ac2f044d24815c792c12a3ab38/360p/mp4/file.mp4

https://video.wixstatic.com/video/e4baa5_7237318001084a629f88e3b431155f95/360p/mp4/file.mp4

Binder Jetting Simulation – Full 3D Resolution

深入了解黏合劑在粉床上的擴散和滲透

https://video.wixstatic.com/video/e4baa5_2dc13f515279458c917cf4cfcd58b6ff/360p/mp4/file.mp4

多液滴撞擊模擬 Multiple Droplet Impingement

https://video.wixstatic.com/video/e4baa5_d27a2eef216f4c05bf61f4bd9e13325e/360p/mp4/file.mp4