Heat Transfer in Continuous-Drive Friction Welding of Different Diameters

ABSTRACT

Heat transfer in friction welding of similar and dissimilar cylindrical rods with different diameters is considered in the present study. The governing equations are solved numerically using an explicit finite-difference technique to determine the temperature field for various values of geometric and thermal parameters. The values of the parameters in the problem are selected as a = 1, 2, 4 for the aspect ratio, r _k  = 0.25, 1, 4 for the thermal conductivities ratio, and B ₁ = 0.05, 0.01, 0.001 for the Biot number. The predicted temperature field is of similar form for all values of the parameters, but the radial and axial temperature gradients change at certain amounts for different values of parameters.