Numerical dynamic analysis of moving GTA weld pool

被引：9
作者：
Cao, ZN [1 ]
Zhang, YM
Kovacevic, R
机构：
[1] Univ Kentucky, Ctr Robot & Mfg Syst, Lexington, KY 40506 USA
[2] So Methodist Univ, Dallas, TX 75275 USA
来源：
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME | 1998年 / 120卷 / 01期
关键词：
D O I：
10.1115/1.2830096
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A three dimensional model with a moving heat source is developed to describe heat transfer and fluid flow in transient weld pools. Full penetration and free top and bottom surfaces are incorporated in the model in order to simulate the welding process more practically. The influence of plate thickness and welding current on the dynamics of weld pools is analyzed using calculated data. It is shown that when the workpiece is nearly penetrated, the depth of weld pool increases quickly. Also, the elevation of the top surface decreases quickly once the full penetration status is established.
引用
收藏
页码：173 / 178
页数：6
相关论文
共 30 条
  • [11] KOVACEVIC R, 1995, ASME, V117, P210
  • [12] KOVACEVIC R, 1993, P INT C MOD CONTR JO, P607
  • [13] KOVACEVIC R, 1995, 4 INT C TRENDS WELD
  • [14] PRESSURES PRODUCED BY GAS TUNGSTEN ARCS
    LIN, ML
    EAGAR, TW
    [J]. METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1986, 17 (03): : 601 - 607
  • [15] OHJI T, 21155583 IIW
  • [16] OPER GM, 1984, J FLUID MECH, V147, P53
  • [17] Patankar S.V., 1980, Numerical Heat Transfer and Fluid-Flow, DOI 10.1201/9781482234213
  • [18] MODELING WELDING BY SURFACE HEATING
    SHENG, IC
    CHEN, Y
    [J]. JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1992, 114 (04): : 439 - 449
  • [19] THE TRANSIENT-BEHAVIOR OF WELDPOOLS WITH A DEFORMED FREE-SURFACE
    THOMPSON, ME
    SZEKELY, J
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1989, 32 (06) : 1007 - 1019
  • [20] MARANGONI CONVECTION IN WELD POOLS WITH A FREE-SURFACE
    TSAI, MC
    KOU, S
    [J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 1989, 9 (12) : 1503 - 1516
123