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

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR

Subclass:

WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL

Child Classifications

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• B23H 9/02 Trimming or deburring
• B23H 9/04 Treating surfaces of rolls
• B23H 9/06 Marking or engraving
• B23H 9/08 Sharpening
• B23H 9/1 Working turbine blades or nozzles
• B23H 9/12 Forming parts of complementary shape, e.g. punch-and-die
• B23H 9/14 Making holes
• B23H 9/18 Producing external conical surfaces or spikes