Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K11/00—Resistance welding; Severing by resistance heating
B23K11/08—Seam welding not restricted to one of the preceding subgroups
B23K11/093—Seam welding not restricted to one of the preceding subgroups for curved planar seams
B23K11/0935—Seam welding not restricted to one of the preceding subgroups for curved planar seams of tube sections
Einrichtung zur Herstellung schmiedeeiserner Rohre aus in Rohrform gebogenen Blechstreifen durch in Laengsrichtung der Rohrnaht fortschreitende elektrische Abschmelzschweissung
Verfahren und vorrichtung zur verschweissung von rohrteilen mit plattenfoermigen teilen durch widerstandschweissung, insbesondere bei der herstellung von waermeaustauschern