Uncoated cutting tool using brazed-in superhard blank

A method of removing material in a threading operation from a workpiece comprising a ferrous alloy having a hardness between about 50 Rockwell C and about 65 Rockwell C using an uncoated cutting tool, the process comprising: providing an uncoated cutting tool having body containing a pocket where a...

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Bibliographische Detailangaben
Hauptverfasser:	GATES, ALFRED S. JR, REINER, KENT R, OLES, EDWARD J, GENAIN, JEAN-PIERRE, ALEXANDER IV, WILLIAM M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BORING CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING 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 COMBINED OPERATIONS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DIFFUSION TREATMENT OF METALLIC MATERIAL FUNCTIONAL ELEMENTS OF SUCH SYSTEMS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS OTHER WORKING OF METAL PERFORMING OPERATIONS PHYSICS REGULATING SOLDERING OR UNSOLDERING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THREAD CUTTING TRANSPORTING TURNING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH
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Beschreibung
Zusammenfassung:	A method of removing material in a threading operation from a workpiece comprising a ferrous alloy having a hardness between about 50 Rockwell C and about 65 Rockwell C using an uncoated cutting tool, the process comprising: providing an uncoated cutting tool having body containing a pocket where a superhard blank is brazed using a braze alloy into the pocket to form a braze joint wherein the braze alloy having a liquidus temperature of at least about 900 degrees Centigrade wherein the braze alloy is selected from the group comprising a nickel-gold braze alloy containing nickel and gold, a copper-gold braze alloy containing copper and gold, a gold-copper-nickel braze alloy contains gold and copper and nickel, a silver-titanium-copper braze alloy containing silver and titanium and copper, and a silver-palladium braze alloy containing silver and palladium; and engaging the workpiece with the uncoated cutting tool on multiple passes wherein each pass removes a volume of material substantially equal to or less than the volume of material removed from the workpiece in the previous pass.