Modeling of GMA weld pools with consideration of droplet impact

被引：26

作者：

Cao, ZN ^{[1
]}

Dong, P ^{[1
]}

机构：

[1] Battelle Mem Inst, Ctr Welded Struct Res, Columbus, OH 43201 USA

来源：

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 1998年 / 120卷 / 04期

关键词：

D O I：

10.1115/1.2807020

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A three-dimensional weld pool model has been developed to study the fluid flow and heat transfer process during gas metal are (GMA) welding. Both droplet heat content and impact force were considered in analyzing the effect of droplets on the formation of weld pool. The fluid flow in the weld pool was induced by the presence of surface tension, electromagnetic and buoyancy force. The surface deformation of weld pool was calculated by considering are pressure and droplet impact force. Computational results under partial and full penetration welding conditions were obtained. The effect of heat flow and fluid flow characteristics on weld pool geometry was discussed, particularly with respect to the presence of droplet heat input and impact force.

引用

页码：313 / 320

页数：8

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