pressure or a large force on the workpiece particularly metal sheet 4 5 if it is pressed against the workpiece particularly metal sheet 4 5 upon actuation of the welding tongs 8 when the welding tongs 8 are closed the pressure element 7 is pressed back after having touched the workpiece particularly metal sheet 4 5 until the electrode 2 or electrode cap 3 contacts the metal sheet surfaces 13 of the metal sheets 4 5 via the strip 1 when the welding tongs 8 are opened the pressure element 7 is pressed forward by means 11 for the application of force and in particular an elastomer spring 12 or any other actuating means because of the deliberately produced tensile stress and the unavoidable stiffness of the strip 1 the latter is forcibly placed in spaced apart relationship to the surface of the electrode 2 and in particular the electrode cap 3 the pressure element 7 during the welding process thus partially presses on the sheet metal surface 13 lying close to the welding zone and thereby prevents the two workpieces particularly metal sheets 4 5 from being opened which will usually happen during spot welding by additionally supplying pressure to the electrode 2 the strip 1 or a carrier material 14 of the strip 1 on the side facing away from the electrode 2 is coated with an electrically well conducting soft material wherein the material of the coating 15 has a lower hardness than the carrier material of the strip 1 the coating 15 of the strip 1 may be comprised of tin or zinc or a tin or zinc alloy preferably having a melting temperature of below 1000 u00b0 c in a preferred manner.