期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 97, 期 -, 页码 1-14出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2016.01.067
关键词
Gas metal arc welding; Computational Fluid Dynamics; Fingertip penetration; Streamline; Momentum flow; Droplet impingement
资金
- Brain Korea 21 through NRF of Korea
- Mid-career Researcher Program through NRF of Korea [2013R1A2A1A01015605]
A CFD based numerical study of the gas metal arc welding process was used to visualize momentum flow in the produced fingertip shaped molten pool. Arc process models were employed with temperature-independent material properties in a phase, and measured process parameters. The results of the welding simulation were in good agreement with the etched cross-section microscopy and temperature history of the experimental results. Molten pool speed information was utilized to track momentum flow in the weld pool using color maps and streamline plots. As results, it was determined that the droplet impingement momentum first strikes the bottom of the molten pool and digs a deep fingertip penetration. Then, the droplet impingement momentum detours backward at a deep level and moves forward at a shallow level, and widens the molten pool width. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据