The formation of spot welds in high strength steel workpieces is improved
by using welding electrodes with annular, or donut shaped welding tips
for the formation of the molten metal weld pool at the weld site. The
annular poll solidifies to form an annular weld nugget. Preferably the
donut shaped nugget has an internal diameter that is no more than
three-quarters of the outside diameter. The method is applicable to
carbon steel workpieces with allowing elements for strengthening, and to
thick sheets of mild carbon steels.