A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRODE FOR ELECTRICAL DISCHARGE MACHINING USING SAID MATERIAL
An object is to provide a graphite-copper composite electrode material that is capable of reducing electrode wear to a practically usable level and to provide an electrical discharge machining electrode using the material. A graphite-copper composite electrode material includes a substrate comprising a graphite material and having pores, and copper impregnated in the pores of the substrate, the electrode material having an electrical resistivity of 2.5 µ©m or less, preferably 1.5 µ©m or less, more preferably 1.0 µ©m or less. It is desirable that the substrate comprising the graphite material have an anisotropy ratio of 1.2 or less. It is desirable that an impregnation rate Õ of the copper in the electrode material is 13% or greater. It is desirable that the substrate comprising the graphite material have a bulk density of from 1.40 Mg/m 3 to 1.85 Mg/m 3 .
GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRODE FOR ELECTRICAL DISCHARGE MACHINING USING SAID MATERIAL
An object is to provide a graphite-copper composite electrode material that is capable of reducing electrode wear to a practically usable level and to provide an electrical discharge machining electrode using the material. A graphite-copper composite electrode material includes a substrate comprising a graphite material and having pores, and copper impregnated in the pores of the substrate, the electrode material having an electrical resistivity of 2.5 µ©m or less, preferably 1.5 µ©m or less, more preferably 1.0 µ©m or less. It is desirable that the substrate comprising the graphite material have an anisotropy ratio of 1.2 or less. It is desirable that an impregnation rate Õ of the copper in the electrode material is 13% or greater. It is desirable that the substrate comprising the graphite material have a bulk density of from 1.40 Mg/m 3 to 1.85 Mg/m 3 .
GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRODE FOR ELECTRICAL DISCHARGE MACHINING USING SAID MATERIAL
GRAPHIT-KUPFERVERBUNDELEKTRODENMATERIAL UND ELEKTRODE ZUR FUNKENEROSIONSBEARBEITUNG MIT DIESEM MATERIAL
MATÉRIAU D'ÉLECTRODE COMPOSITE CUIVRE-GRAPHITE ET ÉLECTRODE POUR USINAGE PAR DÉCHARGE ÉLECTRIQUE UTILISANT LEDIT MATÉRIAU
KANDA MASAO (author) / OHTA NAOTO (author) / SAITO KIYOSHI (author) / OKADA MASAKI (author) / ONISHI MOTOKI (author) / NAMIKI TAKEYUKI (author)
2020-10-21
Patent
Electronic Resource
English
IPC:
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
B23H
Metallbearbeitung durch Einwirkung elektrischen Stromes hoher Stromdichte auf ein Werkstück unter Benutzung einer Elektrode anstelle eines Werkzeugs
,
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
/
C04B
Kalk
,
LIME
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