CFD SIMULATION OF WELDPOOL AND DETERMINATION OF MICROSTRUCTURE OF HAZ

SEMINAR ON WELDING POOL CFD MODELING

The fundamental research in welding modeling began in 1942, but still the research is at a developing stage. developed so far by considering all these effects. Recently the models for prediction of microstructure are making use of convection models, but for predictions of thermal stress are still depending up in areas like distortion prediction, hot cracking etc accurate models are yet to be developed. The idea of computational welding mechanics is a new concept considering all the thermo mechanical and metallurgical effect during welding, and no model is on conduction models.The physics of the welding arc itself is quite intricate, and although the modeling of the arc is not the prime objective of this research project, we conclude that arc forces act on the pool surface, and that the investigation of the micro-structure is important in so far that it provides input to the pool model and thus enables a more accurate prediction of the quality of the weldment.

SEMINAR REPORT INCLUDES 

ARC WELDING 

PHYSICS OF ARC WELDING 

TIG WELDING 

VARIABLES AND PERFORMANCE MEASURE IN GTAW PROCESS 

TIG WELDING MODELING 

MODELING OF WELDING ARC 

HEAT DISTRIBUTION MODELS 

MODELING OF HEAT SOURCE 

MICROSTRUCTURE 

THE METALLURGY OF CARBON STEEL 

EFFECT OF HEAT TRANSFER OF ON WELDPOOL AND HAZ 

HEAT AFFECTED ZONE (HAZ) 

WELDING SIMULATION 

FE MODELING 

COMPUTATIONAL MODEL 

SCOPE OF FUTURE WORK

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