features, specific to machine tools, which relate to a requirement or problem of a nature which is not peculiar to a particular kind of machine tool, e.g. feeding work, which are covered by subclass Fulltext... Hierarchy... Expanded...B23Q, although the realisation of these features may differ according to the kind of machine tool concerned. The said subclass covers such features, in general, even if the feature or a specific function, in any particular case, is to some extent peculiar to, or is claimed only for, machine tools designed for one particular operation; only in exceptional cases are such features classified in the subclass for the machine tool concerned. Certain features of this general nature are, however, referred to subclasses relating to particular metal-working operations, especially Fulltext... Hierarchy... Expanded...B23B, in which case the subclasses in question are not restricted, in respect of those features, to the kind of machine tool with which they are primarily concerned.
In this class, the following terms or expressions are used with the meanings indicated:
"metal-working" covers the working of other materials unless the context requires otherwise;
"kind of operations" and similar expressions relate to such metal-working operations as boring, drilling, milling and grinding;
"kind of machine" means a machine designed for a particular kind of metal-working operation (e.g. a lathe);
"form of machine" means a machine of a particular kind adapted or arranged for a particular way of working or for particular work, e.g. face-plate lathe, tailstock lathe, turret lathe;
"different machines" covers different forms of machines for performing the same type of metal-working operation, e.g. vertical and horizontal boring machines.
If details, components, or accessories have no essential feature specific to machine tools, the more general class, e.g. Fulltext... Hierarchy... Expanded...F16, takes precedence.
Soldering, e.g. brazing, or unsoldering (essentially requiring the use of welding machines or welding equipment, see the relevant groups for the welding machines or welding equipment)
Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods (materials used for soldering Fulltext... Hierarchy... Expanded...B23K 35/00) [5]
Removing material, e.g. by cutting, by hole drilling [5]
P:20
B23K 17/00
Use of the energy of nuclear particles in welding or related techniques
P:50
B23K 20/00
Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating [3]
B23K 20/02
·
by means of a press [3]
B23K 20/04
·
by means of a rolling mill [3]
B23K 20/06
·
by means of high energy impulses, e.g. magnetic energy [3]
B23K 20/10
·
making use of vibrations, e.g. ultrasonic welding [3]
B23K 20/12
·
the heat being generated by friction; Friction welding [3]
B23K 20/14
·
Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces Fulltext... Hierarchy... Expanded...B23K 20/18) [3]
B23K 20/16
·
with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas [3]
B23K 20/18
·
Zonal welding by interposing weld-preventing substances between zones not to be welded [3]
B23K 20/20
·
Special methods allowing subsequent separation, e.g. of metals of high quality from scrap material [3]
B23K 20/22
·
taking account of the properties of the materials to be welded [3]
Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam [3]
B23K 26/04
· ·
Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light [3]
B23K 26/06
· ·
Shaping the laser beam, e.g. by masks or multi-focusing (optical elements, systems, or apparatus, in general Fulltext... Hierarchy... Expanded...G02B) [3]
B23K 26/08
·
Devices involving relative movement between laser beam and workpiece [3]
with the principal constituent melting at less than 400°C
B23K 35/28
· · ·
with the principal constituent melting at less than 950°C
B23K 35/30
· · ·
with the principal constituent melting at less than 1550°C
B23K 35/34
· ·
comprising compounds which yield metals when heated
B23K 35/36
· ·
Selection of non-metallic compositions, e.g. coatings, fluxes (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...B23K 35/24) [2]