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  • Experimental researches of temperature distribution in tee joints during welding

    This article investigates the temperature distribution over the thickness of the elements when welding tee joints with fillet welds. The temperature was measured by thermocouples with corresponding readings recorded on an oscilloscope. At the same time 6 thermocouples were recorded, which made it possible to trace the entire process of temperature change (the process of heating and cooling) and to determine the maximum temperature at the points under study. The experimental results were compared with the calculated temperature values. Comparison of the experimental data with the calculation results showed quite satisfactory agreement what makes it possible to use the theory of heat propagation in welding by N.N. Rykalin to the design of temperature in tee joints when welding fillet welds.

    Keywords: residual welding stresses, temperature distribution during welding, thermocouples, T-joint with fillet welds, temperature distribution through the thickness of the element, “small” thicknesses, “large” thicknesses