A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRICAL DISCHARGE MACHINING ELECTRODE USING THE 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 μΩm or less, preferably 1.5 μΩm or less, more preferably 1.0 μΩm 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 φ 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/m3 to 1.85 Mg/m3.
GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRICAL DISCHARGE MACHINING ELECTRODE USING THE 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 μΩm or less, preferably 1.5 μΩm or less, more preferably 1.0 μΩm 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 φ 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/m3 to 1.85 Mg/m3.
GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRICAL DISCHARGE MACHINING ELECTRODE USING THE MATERIAL
KANDA MASAO (author) / OHTA NAOTO (author) / SAITO KIYOSHI (author) / OKADA MASAKI (author) / ONISHI MOTOKI (author) / NAMIKI TAKEYUKI (author)
2017-02-16
Patent
Electronic Resource
English
IPC:
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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