Method and apparatus for forge welding together a pair of electrically conductive workpieces. Heating of the portions of the workpieces to be welded together to an elevated forge welding temperature is produced by means of a proximity conductor which is positioned closely adjacent such portions and which is conductively connected in electrical series with such portions and forge welding pressure is applied to the portions to weld them together after they have been heated by causing a large magnitude current pulse to flow through the same proximity conductor-workpiece circuit.