Simulations of Droplet Behavior of Spreading and Solidification in Additive Manufacturing

• Main Authors: Tzu-HsiangLin, 林子翔
• Other Authors: Chi-Chuan Hwang
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/40894110589363214993

碩士 === 國立成功大學 === 工程科學系 === 104 === 3D printing is a manufacturing technology which is rapid development in this few years. It can synthesize a three-dimensional object with complicated geometry by using additive layer and without using traditional manufacturing like turning or milling.3D printing is very popular and we can see many kind of desktop 3D printer nowadays. But most of their product are made of plastic. If we want to manufacturing metal product, we have to use SLS(selective laser sintering) or SLM(selective laser melting), and the material will be metal powder. But we have to clean out the powder which is covering our product after the process was complete. Developing a more simple and convenient 3D printing technology were an important topic in the future. Melting droplet deposition can generate firm object, and without the remove process like SLM. It is a growth-oriented technology. This article will build an additive manufacturing model about droplet behavior of spreading and solidification by using COMSOL finite element simulation software. When the scale of the model and difficulty became higher. So did the memory usage. Therefore, this article will running COMSOL in parallel and testing the efficacy between dif-ferent number of nodes.