B PERFORMING OPERATIONS; TRANSPORTING
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
B23K20/00 Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
B23K20/10 making use of vibrations, e.g. ultrasonic welding