Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating

Child Classifications

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• B23K 20/001 CPC only CPC only
• B23K 20/002 +1 CPC CPC only CPC only
• B23K 20/008 CPC only CPC only
• B23K 20/02 by means of a press since 1980 +3 CPC IPC+CPC Available in IPC and CPC
• B23K 20/04 by means of a rolling mill since 1980 IPC+CPC Available in IPC and CPC
• B23K 20/06 by means of high energy impulses, e.g. magnetic energy since 1980 IPC+CPC Available in IPC and CPC
• B23K 20/10 making use of vibrations, e.g. ultrasonic welding since 1980 +2 CPC IPC+CPC Available in IPC and CPC
• B23K 20/12 the heat being generated by friction; Friction welding since 1980 +6 CPC IPC+CPC Available in IPC and CPC
• B23K 20/14 Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18) since 1980 IPC+CPC Available in IPC and CPC
• B23K 20/16 with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas since 1980 +1 CPC IPC+CPC Available in IPC and CPC
• B23K 20/18 Zonal welding by interposing weld-preventing substances between zones not to be welded since 1980 IPC+CPC Available in IPC and CPC
• B23K 20/20 Special methods allowing subsequent separation, e.g. of metals of high quality from scrap material since 1980 IPC+CPC Available in IPC and CPC
• B23K 20/22 taking account of the properties of the materials to be welded since 1980 IPC+CPC Available in IPC and CPC
• B23K 20/24 Preliminary treatment since 1980 IPC+CPC Available in IPC and CPC
• B23K 20/26 Auxiliary equipment since 1980 IPC+CPC Available in IPC and CPC