|  | B |
SECTION B — PERFORMING OPERATIONS

SHAPING

|  | B22 |
CASTING; POWDER METALLURGY

|  | B22F |
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; OBTAINING METALLIC POWDER, NOT OTHERWISE PROVIDED FOR (processes or apparatus for obtaining metallic powder, covered by a single other sub-class, see the relevant sub-class, e.g. obtaining by spraying molten metal Fulltext... Hierarchy... Expanded...B22D 23/08; making ceramics by compacting or sintering Fulltext... Hierarchy... Expanded...C04B, e.g. Fulltext... Hierarchy... Expanded...C04B 35/64; making alloys by compacting or sintering Fulltext... Hierarchy... Expanded...C22C 1/04, Fulltext... Hierarchy... Expanded...C22C 33/02)

|  | B22F |
Note(s) The term "metallic powder" is to be understood as covering powders containing a substantial proportion of non-metallic material. The term "powder" is not intended to exclude somewhat larger particles which behave in a similar way.

|  | B22F 1/00 |
Special treatment of metallic powder before working, e.g. to facilitate the operation; Metallic powders per se, e.g. mixtures of particles of different composition (Fulltext... Hierarchy... Expanded...C04, Fulltext... Hierarchy... Expanded...C08 take precedence)

|  | B22F 3/00 |
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor

|  | B22F 3/02 |
· | Compacting only

|  | B22F 3/04 |
· · | by applying fluid pressure

|  | B22F 3/06 |
· · | by centrifugal forces

|  | B22F 3/08 |
· · | by explosive forces

|  | B22F 3/10 |
· | Sintering only, e.g. making porous workpieces

|  | B22F 3/12 |
· | Both compacting and sintering

|  | B22F 3/14 |
· · | simultaneously

|  | B22F 3/16 |
· · | in successive or repeated steps

|  | B22F 3/18 |
· | for producing sheet material by making use of pressure rollers

|  | B22F 3/20 |
· | for producing extruded rod stock

|  | B22F 3/22 |
· | for producing castings from a slip

|  | B22F 3/24 |
· | After-treatment of workpieces or articles

|  | B22F 3/26 |
· · | Impregnating

|  | B22F 5/00 |
Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

|  | B22F 5/02 |
· | of piston rings

|  | B22F 5/04 |
· | of turbine blades

|  | B22F 5/06 |
· | of threaded articles, e.g. nuts

|  | B22F 5/08 |
· | of toothed articles, e.g. gear wheels; of cam discs

|  | B22F 7/00 |
Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting

|  | B22F 7/02 |
· | of composite layers

|  | B22F 7/04 |
· · | with one or more layers not made from powder, e.g. made from solid metal

|  | B22F 7/06 |
· | of composite workpieces or articles from parts, e.g. to form tipped tools

|  | B22F 7/08 |
· · | with one or more parts not made from powder

|  | B22F 9/00 |
Making metallic powder by methods not otherwise provided for