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EDM electrodes

Patent ·
OSTI ID:5826996
;
A precision molded electrical discharge machining electrode is made by shaping a preform from granules of carbon and granules of a refractory material selected from the group consisting of tungsten, molybdenum, carbides thereof, and stoichiometric and hyperstoichiometric carbides of the other elements of the groups IVB, VB, and VIB of the Periodic Table of the Elements, the carbon and refractory granules being interconnected in the form of a skeleton at their contiguous points of contact, and infiltrating the preform with copper, silver, or alloys containing those metals.
Assignee:
Minnesota Mining and Manufacturing Company
Patent Number(s):
US 4469654
OSTI ID:
5826996
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
CARBIDES
CARBON
CARBON COMPOUNDS
COPPER
CRYSTAL STRUCTURE
ELECTRIC DISCHARGES
ELECTRODES
ELEMENTS
FABRICATION
GRANULAR MATERIALS
MACHINING
MATERIALS
METALS
MOLYBDENUM CARBIDES
MOLYBDENUM COMPOUNDS
NONMETALS
REFRACTORY METAL COMPOUNDS
REFRACTORY METALS
SILVER
SPARK MACHINING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS