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IPC 7
  B23K - B23K 11/36  
B23K01300-B23K10324
 

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR (punching, perforating, making articles by processing sheet metal, tubes, or profiles B21D; wire-working B21F; making pins, needles, or nails B21G; making chains B21L; grinding B24)


B 23 KSOLDERING 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 B21C 23/22; building up linings or coverings by casting B22D 19/08; casting by dipping B22D 23/04; manufacture of composite layers by sintering metal powder B22F 7/00; arrangements on machine tools for copying or controlling B23Q; covering metals or covering materials with metals, not otherwise provided for C23C; burners F23D)


13/

00Welding by high-frequency current heating  [5]

13/

01.by induction heating  [5]

13/

02..Seam welding

13/

04.by conduction heating  [5]

13/

06.characterised by the shielding of the welding zone against influence of the surrounding atmosphere (selection of media B23K 35/38)  [5]

13/

08.Electric supply or control circuits therefor  [5]


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


15/

00Electron-beam welding or cutting (electron- or ion-beam tubes H01J 37/00)

15/

02.Control circuits therefor  [5]

15/

04.for welding annular seams  [5]

15/

06.within a vacuum chamber (B23K 15/04 takes precedence)  [5]

15/

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

15/

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


17/

00Use of the energy of nuclear particles in welding or related techniques


20/

00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating  [3]

20/

02.by means of a press  [3]

20/

04.by means of a rolling mill  [3]

20/

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

20/

08..Explosive welding  [3]

20/

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

20/

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

20/

14.Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K 20/18)  [3]

20/

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

20/

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

20/

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

20/

22.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/

24.Preliminary treatment  [3]

20/

26.Auxiliary equipment  [3]


23/

00Alumino-thermic welding


25/

00Slag welding, i.e. using a heated layer or mass of powder, slag, or the like in contact with the material to be joined (B23K 23/00 takes precedence; submerged-arc welding B23K 9/18)


26/

00Working by laser beam, e.g. welding, cutting, boring (lasers H01S 3/00) [2,3]

26/

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

26/

03..Observing the workpiece [7]

 

26/

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

26/

06..Shaping the laser beam, e.g. by masks or multi-focusing (optical elements, systems, or apparatus, in general G02B)  [3]

26/

067...Dividing the beam into multiple beams, e.g. multi-focusing [7]

 

26/

073...Shaping the laser spot [7]

 

26/

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

26/

10..using a fixed support  [3]

26/

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

26/

14.using a flow, e.g. a jet of gas, in conjunction with the laser beam (B23K 26/12 takes precedence)  [3]

26/

16.Removing of by-products, e.g. particles or vapours produced during treatment of a workpiece (by a flow of gas B23K 26/14)  [3]

26/

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

26/

20.Bonding, e.g. welding (soldering by means of radiant energy B23K 1/005; joining of preformed plastics parts by heating using laser beam B29C 65/16) [7]

 

26/

22..Spot welding [7]

 

26/

24..Seam welding [7]

 

26/

26...of rectilinear seams [7]

 

26/

28...of curved planar seams [7]

 

26/

30...of three-dimensional seams [7]

 

26/

32..taking account of the properties of the material involved [7]

 

26/

34.Welding for purposes other than joining, e.g. build-up welding [7]

 

26/

36.Removing material [7]

 

26/

38..by boring or cutting [7]

 

26/

40..taking account of the properties of the material involved [7]

 

26/

42.Preliminary treatment; Auxiliary operations or equipment (B23K 26/16 takes precedence) [7]

 


28/

00Welding or cutting not covered by any of the preceding groups (joining workpieces by electrolysis C25D 2/00; electrolytic removal of materials C25F) [2]

28/

02.Combined welding or cutting procedures or apparatus  [2]



31/

00Processes 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 B21C 37/04, B21C 37/08)

31/

02.relating to soldering or welding (dip or wave soldering in the manufacture of printed circuits H05K 3/34)

31/

10.relating to cutting or desurfacing

31/

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


33/

00Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby


35/

00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting

35/

02.characterised by mechanical features, e.g. shape

35/

04..specially designed for use as electrodes (ignition tips for arc welding or cutting B23K 9/26)

35/

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

35/

08....multi-cored; multiple

35/

10....with more than one layer of coating or sheathing material

35/

12..not specially designed for use as electrodes

35/

14...for soldering

35/

16...of non-circular cross-section; with special arrangement, e.g. internal (B23K 35/14 takes precedence)

35/

18....multi-cored; multiple

35/

20....with more than one layer of coating or sheathing material

35/

22.characterised by the composition or nature of the material

35/

24..Selection of soldering or welding materials proper (B23K 35/34 takes precedence)

35/

26...with the principal constituent melting at less than 400C

35/

28...with the principal constituent melting at less than 950C

35/

30...with the principal constituent melting at less than 1550C

35/

32...with the principal constituent melting at more than 1550C

35/

34..comprising compounds which yield metals when heated

35/

36..Selection of non-metallic compositions, e.g. coatings, fluxes (B23K 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 B23K 35/24)  [2]

35/

362...Selection of compositions of fluxes (B23K 35/365, B23K 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/

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

35/

40.Making wire or rods for soldering or welding (processes involving a single technical art, see the relevant subclasses, e.g. B05D, B21C)


37/

00Auxiliary 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 A61F 9/00; applicable to metal-working machines other than soldering, welding, or flame-cutting machines B23Q; other protective shields F16P 1/06)

37/

02.Carriages for supporting the welding or cutting element

37/

04.for holding or positioning work

37/

047..moving work to adjust its position between soldering, welding or cutting steps (B23K 37/053 takes precedence)  [5]

37/

053..aligning cylindrical work; Clamping devices therefor  [5]

37/

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

37/

08.for flash removal  [5]


Indexing scheme associated with groups B23K 1/00 to B23K 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:

00Articles made by soldering, welding or cutting  [5]

101:

02.Honeycomb structures  [5]

101:

04.Tubular or hollow articles  [5]

101:

06..Tubes  [5]

101:

08...finned or ribbed  [5]

101:

10..Pipe-lines  [5]

101:

12..Vessels  [5]

101:

14..Heat exchangers  [5]

101:

16.Bands or sheets of indefinite length  [5]

101:

18.Sheet panels  [5]

101:

20.Tools  [5]

101:

22.Nets, wire fabrics or the like  [5]

101:

24.Frameworks  [5]

101:

26.Railway- or like rails  [5]

101:

28.Beams  [5]

101:

30.Chains, hoops or rings  [5]

101:

32.Wires  [5]

101:

34.Coated articles  [5]

101:

36.Electric or electronic devices  [5]

101:

38..Conductors  [5]

101:

40..Semiconductor devices  [5]

101:

42..Printed circuits  [5]


103:

00Materials to be soldered, welded or cut  [5]

103:

02.Iron or ferrous alloys  [5]

103:

04..Steel alloys  [5]

103:

06..Cast-iron alloys  [5]

103:

08.Non-ferrous metals or alloys  [5]

103:

10..Aluminium or alloys thereof  [5]

103:

12..Copper or alloys thereof  [5]

103:

14..Titanium or alloys thereof  [5]

103:

16.Composite materials  [5]

103:

18.Dissimilar materials  [5]

103:

20..Ferrous alloys and aluminium or alloys thereof  [5]

103:

22..Ferrous alloys and copper or alloys thereof  [5]

103:

24..Ferrous alloys and titanium or alloys thereof  [5]


  B23K - B23K 11/36   
 

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