Abstract:
Provided is a coated cutting tool (10) having a binder enriched substrate (18). The coating includes at least one chemical vapor deposited (CVP) layer (30) and at least one physical vapor deposited (PVD) layer (34). The PVD layer contains residual compressive stresses.
Abstract:
Provided is a coated cutting tool (10) having a coating and a substrate. The coating includes at least one chemical vapor deposited (CVD) layer and at least one physical vapor deposited (PVD) layer. The outermost layer of the coating is a PVD layer, containing residual compressive stresses. The substrate is a composite having hard refractory grains bonded together by a binder material.
Abstract:
A chromium-containing coated cemented tungsten carbide cutting insert (10, 40) that has a substrate (18, 42) and a coating (30, 32, 34, 50). The substrate comprises between about 5.7 and about 6.4 weight percent cobalt, between about 0.2 and about 0.8 weight percent chromium and the balance tungsten and carbon, and a coercive force of about 195 to 245 oersteds.
Abstract:
A process for physical vapor deposition of a refractory coating such as titanium nitride on a nonconductive substrate such as a ceramic substrate and the coated substrate produced thereby. The nonconductive substrate is coated by cleaning the nonconductive substrate surfaces and then depositing a first layer of a refractory metal such as titanium metal on the nonconductive substrate by physical vapor deposition. A second layer of a refractory compound such as titanium nitride is then deposited on the first layer by physical vapor deposition to produce a coated nonconductive substrate having enhanced coating adhesion.
Abstract:
L'invention concerne un outil de coupe (10) recouvert d'un revêtement, comprenant un substrat (18) enrichi par un liant. Le revêtement comprend au moins une couche (30) engendrée par déposition en phase gazeuse par procédé chimique (CVD) et au moins une couche (34) engendrée par déposition en phase gazeuse par procédé physique (PVD). La couche PVD comporte des contraintes de compression résiduelles.
Abstract:
A chromium-containing coated cemented tungsten carbide cutting insert (10, 32) that has a substrate (18, 34) and a coating (24, 30, 40, 46, 52). The substrate comprises between about 10.4 and about 12.7 weight percent cobalt, between about 0.2 and about 1.2 weight percent chromium.
Abstract:
A chromium-containing coated cemented tungsten carbide cutting insert (10, 40) that has a substrate (18, 42) and a coating (30, 32, 34, 50). The substrate comprises between about 5.7 and about 6.4 weight percent cobalt, between about 0.2 and about 0.8 weight percent chromium and the balance tungsten and carbon, and a coercive force of about 195 to 245 oersteds.
Abstract:
Procédé concernant la déposition en phase gazeuse par procédé physique d'un revêtement réfractaire comme du nitrure de titane sur un substrat non-conducteur comme un substrat en céramique, et le substrat recouvert ainsi obtenu. Pour appliquer le revêtement sur le substrat non-conducteur, on nettoie tout d'abord les surfaces dudit substrat, puis on procède à la déposition en phase gazeuse par procédé physique d'une première couche d'un métal réfractaire, comme du métal au titane, sur le substrat non-conducteur. On dépose ensuite sur la première couche une seconde couche d'un composé réfractaire, comme du nitrure de titane, en suivant la méthode de déposition en phase gazeuse par procédé physique, afin de produire un substrat non-conducteur ayant une meilleure adhérence du revêtement.
Abstract:
A chromium-containing coated cemented tungsten carbide cutting insert (10, 32) that has a substrate (18, 34) and a coating (24, 30, 40, 46, 52). The substrate comprises between about 10.4 and about 12.7 weight percent cobalt, between about 0.2 and about 1.2 weight percent chromium.
Abstract:
Provided is a coated cutting tool (10) having a binder enriched substrate (18). The coating includes at least one chemical vapor deposited (CVP) layer (30) and at least one physical vapor deposited (PVD) layer (34). The PVD layer contains residual compressive stresses.