Three-dimensional transient model for arc welding process

Zacharia, T.; Eraslan, A.H.; Aidun, D. K.; David, S. A.

doi:10.1007/bf02655921

Cited by 79 publications

(54 citation statements)

References 9 publications

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“…These choices took into account the heat input used in the simulation, and also known values of y b from the literature, obtained via experimental determination. Table 3 shows the y b values obtained by Kou and Wang (1986), Zacharia et al (1989), andWu (1992), as well as the heat input (HI) used in their analyses. In the present work, the y b parameter was estimated based on the heat input values showed in Table 3.…”

Section: Model Evaluationmentioning

confidence: 99%

Analytical modeling of multipass welding process with distributed heat source

Fassani¹,

Trevisan²

2003

J. Braz. Soc. Mech. Sci. & Eng.

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Section: Model Evaluationmentioning

confidence: 99%

Analytical modeling of multipass welding process with distributed heat source

Fassani¹,

Trevisan²

2003

J. Braz. Soc. Mech. Sci. & Eng.

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“…Extensive reviews of the earlier pool. Recently, Zacharia et al [10,11] have used metallographic studies were provided by Sozou and Pickering, [2] Oreper techniques to favorably compare the actual fusion-zone et al, [3] Thompson and Szekely, [4] and Tsotridis et al [5] geometry of 304 laser and 304 GTA welds with their numeriTherefore, only the recent works directly relating to the cal simulation results. present study are reviewed here.…”

Section: Introductionmentioning

confidence: 99%

Digital simulations of a stationary and a linear weld

Aidun

Ahmadi

Domey

2002

Metall Mater Trans B

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A computational model was used to simulate stationary and linear gas-tungsten-arc (GTA) welds and to study the effect of surface-tension as well as arc position. The results show that the surface-tension gradient with respect to temperature is a dominating factor in determining the direction of the convective flow within the molten weld pool. Furthermore, a linear-arc movement leads to a convective pattern, which is different from that of a stationary weld.

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“…Weld pool convection and top surface deformation were studied by Zacharia et al [7,8] for nonautogenous and autogenous GTA welding of aluminum alloy 6061 plates, using the transient multidimensional simulation tool, WELDER. Temperature and velocity fields were calculated for both stationary and linear welding.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Linear Gas Tungsten Arc Welding of Stainless Steel

Ponnambalam¹,

Sornakumar²,

Sundararajan

2008

Metall Mater Trans B

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A heat and fluid flow model has been developed to solve the gas tungsten arc (GTA) linear welding problem for austenitic stainless steel. The moving heat source problem associated with the electrode traverse has been simplified into an equivalent two-dimensional (2-D) transient problem. The torch residence time has been calculated from the arc diameter and torch speed. The mathematical formulation considers buoyancy, electromagnetic induction, and surface tension forces. The governing equations have been solved by the finite volume method. The temperature and velocity fields have been determined. The theoretical predictions for weld bead geometry are in good agreement with experimental measurements.

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Three-dimensional transient model for arc welding process

Cited by 79 publications

References 9 publications

Analytical modeling of multipass welding process with distributed heat source

Analytical modeling of multipass welding process with distributed heat source

Digital simulations of a stationary and a linear weld

Modeling of Linear Gas Tungsten Arc Welding of Stainless Steel

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