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A CVD diamond wire-drawing die has smaller diamond grains adjacent an initial diamond growth surface with larger diamond grains adjacent an opposing surface with an opening having a wire bearing portion of substantially circular cross-section, determinative of the dia. of the wire positioned more cl...

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Bibliographische Detailangaben
Hauptverfasser:	WILLIAMS, BRADLEY EARL, ANTHONY, THOMAS RICHARD
Format:	Patent
Sprache:	ger
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	A CVD diamond wire-drawing die has smaller diamond grains adjacent an initial diamond growth surface with larger diamond grains adjacent an opposing surface with an opening having a wire bearing portion of substantially circular cross-section, determinative of the dia. of the wire positioned more closely adjacent to the initial growth surface in a region of smaller grains than to final large grained opposing surface.