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Study on flow and heat transfer characteristics of 3D molten aluminum droplet printing process by Nan Zheng; Zhaomiao Liu; Yan Pang; Fanming Cai; Siyu Zhao is a Engineering article available to read on EtoBox.

What is Study on flow and heat transfer characteristics of 3D molten aluminum droplet printing process about?

The molten metal droplet printing technology can effectively realize a precise preparation of complex electronic devices at the micro scale by relying on the metallurgical bonding among the tiny molten metal droplets, which can improve the metallographic structure and mechanical properties of the fabricated parts. In this paper, the interaction process between metal droplets and movable substrates during the preparation of electronic devices is studied based on the coupled level set volume of fluid method (CLSVOF) and equivalent heat capacity method. The influence of the micro-bubbles and wall infiltration characteristics on the impingement spreading flow of metal droplets and their heat transfer cooling process is also investigated. The evolution mechanisms of droplet geometry and the distribution characteristics of droplet internal temperature and heat flow density during the impingement spreading process are discussed. The mechanism of high-temperature region formation under superhydrophobic wall conditions is analyzed. Results show that the microbubbles inhibit the spread of molten metal droplet. Under the same conditions, the spreading radius of hollow metal droplet is smaller

Who reads Study on flow and heat transfer characteristics of 3D molten aluminum droplet printing process?

Author

Nan Zheng; Zhaomiao Liu; Yan Pang; Fanming Cai; Siyu Zhao

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)