Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (heat treatment by cathodic discharge C21D1/38)

Introduced: January 1985

Title

Titles differ between systems:

IPC: Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects

CPC: Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (heat treatment by cathodic discharge C21D1/38)

Full Title

Full titles differ between systems:

IPC:

Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects

CPC:

Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (heat treatment by cathodic discharge C21D1/38)

Of 13 combined children, 8 exist in both systems.

5 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1985.

Child Classifications

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B23H 9/001 CPC only CPC only
B23H 9/003 CPC only CPC only
B23H 9/005 CPC only CPC only
B23H 9/006 CPC only CPC only
B23H 9/008 CPC only CPC only
B23H 9/02 Trimming or deburring since 1985 IPC+CPC Available in IPC and CPC
B23H 9/04 Treating surfaces of rolls since 1985 IPC+CPC Available in IPC and CPC
B23H 9/06 Marking or engraving since 1985 IPC+CPC Available in IPC and CPC
B23H 9/08 Sharpening since 1985 IPC+CPC Available in IPC and CPC
B23H 9/10 Working turbine blades or nozzles since 1985 IPC+CPC Available in IPC and CPC
B23H 9/12 Forming parts of complementary shape, e.g. punch-and-die since 1985 IPC+CPC Available in IPC and CPC
B23H 9/14 Making holes since 1985 IPC+CPC Available in IPC and CPC
B23H 9/18 Producing external conical surfaces or spikes (B23H9/08 takes precedence) since 1985 IPC+CPC Available in IPC and CPC