Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor

Introduced: September 1968

Of 16 combined children, 10 exist in both systems.

6 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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B22F 3/001 CPC only CPC only
B22F 3/002 CPC only CPC only
B22F 3/003 CPC only CPC only
B22F 3/004 CPC only CPC only
B22F 3/005 CPC only CPC only
B22F 3/006 +1 CPC CPC only CPC only
B22F 3/02 Compacting only +2 CPC IPC+CPC Available in IPC and CPC
B22F 3/10 Sintering only +6 CPC IPC+CPC Available in IPC and CPC
B22F 3/115 by spraying molten metal, i.e. spray sintering, spray casting since 1995 IPC+CPC Available in IPC and CPC
B22F 3/12 Both compacting and sintering (by forging B22F3/17) +1 CPC IPC+CPC Available in IPC and CPC
B22F 3/17 by forging since 1995 +3 CPC IPC+CPC Available in IPC and CPC
B22F 3/18 by using pressure rollers +1 CPC IPC+CPC Available in IPC and CPC
B22F 3/20 by extruding +4 CPC IPC+CPC Available in IPC and CPC
B22F 3/22 for producing castings from a slip +3 CPC IPC+CPC Available in IPC and CPC
B22F 3/23 involving a self-propagating high-temperature synthesis or reaction sintering step since 1995 IPC+CPC Available in IPC and CPC
B22F 3/24 After-treatment of workpieces or articles +4 CPC IPC+CPC Available in IPC and CPC