Analysis of weld pool dynamic during stationary laser–MIG hybrid welding

被引：4
作者：
Zhiguo Gao
Yixiong Wu
Jian Huang
机构：
[1] Shanghai Key Laboratory of Materials Laser Processing and Modification,School of Materials Science and Engineering
[2] Shanghai Jiao Tong University,undefined
来源：
The International Journal of Advanced Manufacturing Technology | 2009年 / 44卷
关键词：
Laser–MIG hybrid welding; Mathematical model; Weld pool; Fluid flow;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A mathematical model was established to simulate the weld pool development and dynamic process in stationary laser–metal inert gas (MIG) hybrid welding. Surface tension and buoyancy were considered to calculate liquid metal flow pattern; moreover, typical phenomena of MIG welding such as filler droplets impinging weld pool, electromagnetic force in the weld pool, and typical phenomena of laser beam welding such as recoil pressure, inverse Bremsstrahlung absorption, and Fresnel absorption were all considered in the model. The laser beam and arc couple effect was introduced into this model by the plasma width during hybrid welding. Transient weld pool shape and complicated liquid metal velocity distribution from two kinds of weld pool to a unified weld pool were calculated. Furthermore, the simulated weld bead geometries were in good agreement with experimental measurement.
引用
收藏
页码：870 / 879
页数：9
相关论文
共 21 条
[1]  
Li ZN(2007)Flow patterns in the weld pool during laser-plasma hybrid welding J Tsinghua Univ (Sci & Tech) 47 1263-1266
[2]  
Du D(1988)Enthalpy–porosity technique for modelling convection–diffusion phase change: application to the melting of a pure metal Numer Heat Transf A 13 297-318
[3]  
Chang BH(2002)Three-dimensional modeling of heat transfer and fluid flow in laser full-penetration welding J Phys D Appl Phys 35 1024-1056
[4]  
Brent AD(1997)The role of recoil pressure in energy balance during laser materials processing J Phys D Appl Phys 30 2541-2552
[5]  
Voller VR(1999)Temporal evolution of the temperature field in the beam interaction zone during laser material processing J Phys D Appl Phys 32 1819-1825
[6]  
Reid KJ(1994)A model of deep penetration laser welding based on calculation of the keyhole profile J Phys D Appl Phys 27 1805-1814
[7]  
Ye XH(2004)Three-dimensional simulation of transient GMA weld pool with free surface Weld J 83 169s-176s
[8]  
Chen Xi(2001)Impingement of filler droplets and weld pool dynamics during gas metal arc welding process Int J Heat Mass Transfer 44 2067-2080
[9]  
Semak V(2008)Modeling of transport phenomena in hybrid laser–MIG keyhole welding Int J Heat Mass Transfer 51 4353-4366
[10]  
Matsunawa A(undefined)undefined undefined undefined undefined-undefined
123