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

页码：2067 / 2080

页数：14

共 37 条

[1] NON-DARCY FLOW THEOUGH FIBROUS POROUS MEDIA [J].

BEAVERS, GS ;

SPARROW, EM .

JOURNAL OF APPLIED MECHANICS, 1969, 36 (04) :711-&

[2]

Carman P. C., 1937, T I CHEM ENG-LOND, V15, P150, DOI [10.1016/S0263-8762(97)80003-2, DOI 10.1016/S0263-8762(97)80003-2]

[3] SHRINKAGE-INDUCED FLUID-FLOW AND DOMAIN CHANGE IN 2-DIMENSIONAL ALLOY SOLIDIFICATION [J].

CHIANG, KC ;

TSAI, HL .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1992, 35 (07) :1763-1770

[4]

CHOO RTC, 1991, WELD J, V70, pS223

[5] ON THE CALCULATION OF THE FREE-SURFACE TEMPERATURE OF GAS-TUNGSTEN-ARC WELD POOLS FROM 1ST PRINCIPLES .2. MODELING THE WELD POOL AND COMPARISON WITH EXPERIMENTS [J].

CHOO, RTC ;

SZEKELY, J ;

DAVID, SA .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1992, 23 (03) :371-384

[6]

CHOO RTC, 1990, WELD J, V69, P346

[7]

DELPLANQUE JP, 1996, ASME HTD, V336, P275

[8] MODELING OF SOLUTE REDISTRIBUTION IN THE MUSHY ZONE DURING SOLIDIFICATION OF ALUMINUM-COPPER ALLOYS [J].

DIAO, QZ ;

TSAI, HL .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1993, 24 (04) :963-973

[9]

DUPONT JN, 1995, WELDING J DEC, pS406

[10]

ESSERS WG, 1981, WELD J, V60, pS37

← 1 2 3 4 →