CUTTING INSERT AND METHOD OF MAKING THE SAME

PURPOSE: A cutting insert is provided wherein the flank face has improved wear resistance and the rake face has improved impact resistance. CONSTITUTION: A cutting insert(10) that has a flank face and a rake face and a cutting edge(16) at the juncture thereof. The substrate(18) presents a bulk regio...

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Bibliographische Detailangaben
1. Verfasser:	GRAB GEORGE P
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BORING CASTING 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 FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TURNING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PURPOSE: A cutting insert is provided wherein the flank face has improved wear resistance and the rake face has improved impact resistance. CONSTITUTION: A cutting insert(10) that has a flank face and a rake face and a cutting edge(16) at the juncture thereof. The substrate(18) presents a bulk region(30) that contains a metallic binder, as well as one or more of Group IVB, Group VB, and Group VIB metal carbides and/or carbonitrides. The substrate further includes a flank surface region(32) near the flank face of the substrate that has a solid solution metal carbide and/or carbonitride content greater than that of the bulk region. The substrate includes a rake surface region near the rake face of the substrate with a solid solution metal carbide content that is less than that of the flank surface region.