Impingement of filler droplets and weld pool dynamics during gas metal are welding process

被引：113
|
作者：
Wang, Y [1 ]
Tsai, HL [1 ]
机构：
[1] Univ Missouri, Dept Mech & Aerosp Engn & Engn Mech, Rolla, MO 65409 USA
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2001年 / 44卷 / 11期
关键词：
D O I：
10.1016/S0017-9310(00)00252-0
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A mathematical model and the associated numerical technique have been developed to simulate, for the first time, the dynamic impinging process of filler droplets onto the weld pool in spot gas metal arc welding (GMAW). Filler droplets driven by gravity, electromagnetic force, and plasma arc drag force, carrying mass, momentum, and thermal energy periodically impinge onto the base metal, leading to a liquid weld puddle. Transient weld pool shape and the complicated fluid flow in the weld pool caused mainly by the combined effect of droplet impinging momentum and surface tension are calculated. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2067 / 2080
页数：14
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