Resistance welding Severing by resistance heating

BPERFORMING OPERATIONS TRANSPORTING B23Machine tools B23KSOLDERING OR UNSOLDERING WELDING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY

B23K11/00Resistance welding Severing by resistance heating

B23K11/0006the welding zone being shielded against the influence of the surrounding atmosphere B23K11/0013welding for reasons other than joining B23K11/002specially adapted for particular articles or work B23K11/0026Welding of thin articles B23K11/0033Welding locally a thin plate to a large piece B23K11/004Welding of a small piece to a great or broad piece B23K11/0046the extremity of a small piece being welded to a base B23K11/0053Stud welding B23K11/006Welding a tip to a base B23K11/0066Riveting B23K11/0073Butt welding of long articles advanced axially B23K11/008Manufacturing of metallic grids or mats by spot welding B23K11/0086Grids or mats used in concrete structures B23K11/0093Welding of honeycomb sandwich structures B23K11/02Pressure butt welding B23K11/04Flash butt welding B23K11/043characterised by the electric circuits used therewith B23K11/046Apparatus therefor B23K11/06using roller electrodes B23K11/061for welding rectilinear seams B23K11/062for welding longitudinal seams of tubes B23K11/063Lap welding B23K11/065for welding curved planar seams B23K11/066of tube sections B23K11/067for welding three-dimensional seams B23K11/068of helicoidal seams B23K11/08Seam welding not restricted to one of the preceding sub-groups B23K11/082of three-dimensional seams B23K11/084of helicoïdal seams B23K11/087for rectilinear seams B23K11/0873of the longitudinal seam of tubes B23K11/0876Lap welding B23K11/093for curved planar seams B23K11/0935of tube sections B23K11/10Spot welding Stitch welding B23K11/105Stitch welding B23K11/11Spot welding B23K11/115by means of two electrodes placed opposite one another on both sides of the welded parts B23K11/12making use of vibrations B23K11/14Projection welding B23K11/16taking account of the properties of the material to be welded B23K11/163Welding of coated materials B23K11/166of galvanized or tinned materials B23K11/18of non-ferrous metals B23K11/185of aluminium or aluminium alloys B23K11/20of different metals B23K11/22Severing by resistance heating B23K11/24Electric supply or control circuits therefor B23K11/241Electric supplies B23K11/243Multiple welding installations fed by one source B23K11/245using a stepping counter in synchronism with the welding pulses B23K11/246for flash welding B23K11/248Electric supplies using discharge tubes B23K11/25Monitoring devices B23K11/251using analog means B23K11/252using digital means B23K11/253the measured parameter being a displacement or a position B23K11/255the measured parameter being a force B23K11/256the measured parameter being the inter-electrode electrical resistance B23K11/257the measured parameter being an electrical current B23K11/258the measured parameter being a voltage B23K11/26Storage discharge welding B23K11/28Portable welding equipment B23K11/30Features relating to electrodes B23K11/3009Pressure electrodes B23K11/3018Cooled pressure electrodes B23K11/3027Slide or drag electrodes B23K11/3036Roller electrodes B23K11/3045Cooled roller electrodes B23K11/3054Cooled electrodes B23K11/3063Electrode maintenance B23K11/3072Devices for exchanging or removing electrodes or electrode tips B23K11/3081Electrodes with a seam contacting part shaped so as to correspond to the shape of the bond area B23K11/309Wire electrodes B23K11/31Electrode holders and actuating devices therefor B23K11/311the actuating device comprising an electric motor B23K11/312for several electrodes B23K11/314Spot welding guns B23K11/315with one electrode moving on a linear path B23K11/317Equalizing; Balancing devices for electrode holders B23K11/318Supporting devices for electrode holders B23K11/34Preliminary treatment B23K11/36Auxiliary equipment B23K11/362Contact means for supplying welding current to the electrodes B23K11/364Clamping contacts B23K11/366Sliding contacts B23K11/368Liquid contacts