C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 29/02 (2006.01) C22C 29/06 (2006.01)
Patent
CA 2302308
A cutting insert (2) including a flank face (6), a rake face (4), and a cutting edge (8) at the intersection of the flank and rake faces that is useful in the chip forming machining of workpiece materials is disclosed. The cutting insert comprises a cermet comprising at least one hard component and about 3 wt.% to 19 wt.% Co-Ni-Fe-binder. The Co-Ni-Fe-binder is unique in that even when subjected to plastic deformation, the binder substantially maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.
Cette lame rapportée (2) présente une face de dépouille (6), une face de coupe (4) et un tranchant (8) à l'intersection de la face de dépouille et de la face de coupe, servant au fraisage de matériaux pour pièces à usiner avec formation de copeaux. Cette lame rapportée est fabriquée en un cermet contenant au moins un constituant dur et environ 2 à 19 % en poids d'un liant Co-Ni-Fe. Ce liant Co-Ni-Fe est unique en ce que, même soumis à des déformations plastiques, il conserve sensiblement intacte son système cristallin cubique à faces centrées (fcc) et évite les transformations dues à l'effort et/ou aux contraintes.
Heinrich Hans-Wilm
Schleinkofer Uwe
Schmidt Dieter
Wolf Manfred
Kennametal Inc.
Smart & Biggar
LandOfFree
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