Reliability of numerical analysis of cooling curves in the fusion zone of submerged ARC welding (SAW)‎ process

الملخص EN

In this work, simulation of fusion welding technique to estimate the cooling curves and temperature distribution in submerged Arc (SA) welded workpiece was assessed.

Numerical analysis by using Finite Volume Method (FVM), applied to three-dimensional heat transfer model to determine the cooling curve in weld metal zone.

There is no reliable method for calculation such cooling rate as a function of welding current, voltage speed and arc transfer efficiency in metal joint geometry.

Cooling rates are determined by affected of weld metal deposition in the fusion zone at different welding speeds (22, 23 and 25) cm/min, with constant welding current at 500 Amp and 40 voltages.

The joint geometry of single-V- butt joint with one pass are used for half plate dimensions (150×150×18 ) mm, fixed with standard geometry of (ISO-2560).

Cooling curves model which is confirming the capability and reliability of weld metal deposition in fusion zone with different welding speeds.

The optimization of filling area (weld metal deposition) by FVM is determined in each welding speed having correct welding current to filling cell of weld area.