IPC 6 English version B23K 13/00-B23K 103:24

B23K01300-B23K10324

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 23

MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR (punching, perforating, making articles by processing sheet metal, tubes, or profiles B 21 D; wire-working B 21 F; making pins, needles, or nails B 21 G; making chains B 21 L; grinding B 24)

B 23 K

SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM (making metal-coated products by extruding metal B 21 C 23/22; building up linings or coverings by casting B 22 D 19/08; casting by dipping B 22 D 23/04; manufacture of composite layers by sintering metal powder B 22 F 7/00; arrangements on machine tools for copying or controlling B 23 Q; covering metals or covering materials with metals, not otherwise provided for C 23 C; burners F 23 D)

13/

Welding by high-frequency current heating [5]

13/

by induction heating [5]

13/

Seam welding

13/

by conduction heating [5]

13/

characterised by the shielding of the welding zone against influence of the surrounding atmosphere (selection of media B 23 K 35/38) [5]

13/

Electric supply or control circuits therefor [5]

Other welding or cutting; Working by laser beam [3]

15/

Electron-beam welding or cutting (electron- or ion-beam tubes H 01 J 37/00)

15/

Control circuits therefor [5]

15/

for welding annular seams [5]

15/

within a vacuum chamber (B 23 K 15/04 takes precedence) [5]

15/

Removing material, e.g. by cutting, by hole drilling [5]

15/

Non-vacuum electron beam-welding or cutting [5]

17/

Use of the energy of nuclear particles in welding or related techniques

20/

Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating [3]

20/

by means of a press [3]

20/

by means of a rolling mill [3]

20/

by means of high energy impulses, e.g. magnetic energy [3]

20/

Explosive welding [3]

20/

making use of vibrations, e.g. ultrasonic welding [3]

20/

the heat being generated by friction; Friction welding [3]

20/

Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B 23 K 20/18) [3]

20/

with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas [3]

20/

Zonal welding by interposing weld-preventing substances between zones not to be welded [3]

20/

Special methods allowing subsequent separation, e.g. of metals of high quality from scrap material [3]

20/

taking account of the properties of the materials to be welded [3]

20/

227

with ferrous layer [5]

20/

233

without ferrous layer [5]

20/

Preliminary treatment [3]

20/

Auxiliary equipment [3]

23/

Alumino-thermic welding

25/

Slag welding, i.e. using a heated layer or mass of powder, slag, or the like in contact with the material to be joined (B 23 K 23/00 takes precedence; submerged-arc welding B 23 K 9/18)

26/

Working by laser beam, e.g. welding, cutting, boring (lasers H 01 S 3/00) [2,3]

26/

Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam [3]

26/

Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light [3]

26/

Shaping the laser beam, e.g. by masks or multi-focussing (optical elements, systems, or apparatus, in general G 02 B) [3]

26/

Devices involving relative movement between laser beam and workpiece [3]

26/

using a fixed support [3]

26/

in a special atmosphere, e.g. in an enclosure [3]

26/

using a flow, e.g. a jet of gas, in conjunction with the laser beam (B 23 K 26/12 takes precedence) [3]

26/

Removing of by-products, e.g. particles or vapours produced during treatment of a workpiece (by a flow of gas B 23 K 26/14) [3]

26/

using absorbing layers on the material being worked, e.g. for marking or protecting purposes [3]

28/

Welding or cutting not covered by any of the preceding groups (joining workpieces by electrolysis C 25 D 2/00; electrolytic removal of materials C 25 F) [2]

28/

Combined welding or cutting procedures or apparatus [2]

31/

Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups (making tubes or profiled bars involving operations other than soldering or welding B 21 C 37/04, B 21 C 37/08)

31/

relating to soldering or welding (dip or wave soldering in the manufacture of printed circuits H 05 K 3/34)

31/

relating to cutting or desurfacing

31/

relating to investigating the properties, e.g. the weldability, of materials [5]

33/

Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby

35/

Rods, electrodes, materials, or media, for use in soldering, welding, or cutting

35/

characterised by mechanical features, e.g. shape

35/

specially designed for use as electrodes (ignition tips for arc welding or cutting B 23 K 9/26)

35/

of non-circular cross-section; with special arrangement, e.g. internal

35/

multi-cored; multiple

35/

with more than one layer of coating or sheathing material

35/

not specially designed for use as electrodes

35/

for soldering

35/

of non-circular cross-section; with special arrangement, e.g. internal (B 23 K 35/14 takes precedence)

35/

multi-cored; multiple

35/

with more than one layer of coating or sheathing material

35/

characterised by the composition or nature of the material

35/

Selection of soldering or welding materials proper (B 23 K 35/34 takes precedence)

35/

with the principal constituent melting at less than 400°C

35/

with the principal constituent melting at less than 950°C

35/

with the principal constituent melting at less than 1550°C

35/

with the principal constituent melting at more than 1550°C

35/

comprising compounds which yield metals when heated

35/

Selection of non-metallic compositions, e.g. coatings, fluxes (B 23 K 35/34 takes precedence); Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest (selection of soldering or welding materials proper B 23 K 35/24) [2]

35/

362

Selection of compositions of fluxes (B 23 K 35/365, B 23 K 35/368 take precedence) [2]

35/

363

for soldering or brazing [4]

35/

365

Selection of non-metallic compositions of coating materials either alone or conjoint with selection of soldering or welding materials [2]

35/

368

Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials [2]

35/

Selection of media, e.g. special atmospheres for surrounding the working area

35/

Making wire or rods for soldering or welding (processes involving a single technical art, see the relevant subclasses, e.g. B 05 D, B 21 C)

37/

Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups (eye-shields for welders worn on the operator's body or carried in the hand A 61 F 9/00; applicable to metal-working machines other than soldering, welding, or flame-cutting machines B 23 Q; other protective shields F 16 P 1/06)

37/

Carriages for supporting the welding or cutting element

37/

for holding or positioning work

37/

047

moving work to adjust its position between soldering, welding or cutting steps (B 23 K 37/053 takes precedence) [5]

37/

053

aligning cylindrical work; Clamping devices therefor [5]

37/

for positioning the molten material, e.g. confining it to a desired area

37/

for flash removal [5]

Indexing scheme associated with groups B 23 K 1/00 to B 23 K 31/00, relating to articles made by soldering, welding or cutting or to materials to be soldered, welded or cut. The indexing codes should be unlinked. [5]

Note

Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code. [6]

101:

Articles made by soldering, welding or cutting [5]

101:

Honeycomb structures [5]

101:

Tubular or hollow articles [5]

101:

Tubes [5]

101:

finned or ribbed [5]

101:

Pipe-lines [5]

101:

Vessels [5]

101:

Heat exchangers [5]

101:

Bands or sheets of indefinite length [5]

101:

Sheet panels [5]

101:

Tools [5]

101:

Nets, wire fabrics or the like [5]

101:

Frameworks [5]

101:

Railway- or like rails [5]

101:

Beams [5]

101:

Chains, hoops or rings [5]

101:

Wires [5]

101:

Coated articles [5]

101:

Electric or electronic devices [5]

101:

Conductors [5]

101:

Semiconductor devices [5]

101:

Printed circuits [5]

103:

Materials to be soldered, welded or cut [5]

103:

Iron or ferrous alloys [5]

103:

Steel alloys [5]

103:

Cast-iron alloys [5]

103:

Non-ferrous metals or alloys [5]

103:

Aluminium or alloys thereof [5]

103:

Copper or alloys thereof [5]

103:

Titanium or alloys thereof [5]

103:

Composite materials [5]

103:

Dissimilar materials [5]

103:

Ferrous alloys and aluminium or alloys thereof [5]

103:

Ferrous alloys and copper or alloys thereof [5]

103:

Ferrous alloys and titanium or alloys thereof [5]

B23K - B23K 11/36