A method of resistance spot welding aluminum alloy workpieces together is disclosed that involves periodically texturing and dressing of at least one of the two electrode weld faces. The texturing and dressing steps help preserve the ability of the welding electrode to deliver electrical current through the overlapping aluminum alloy workpieces being welding despite the presence of one or more oxide layers on the surfaces of the workpieces and, as such, are effective in prolonging the useful life of the electrode(s).