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US 6,309,738 B1Granted
Hard multilayer coated tool having increased toughness
AssigneeOsg Corporation
InventorMasatoshi Sakurai
Life of this patent
Estimating the term…
Abstract
A hard multilayer coated tool including: (a) a substrate; and (b) a multilayer coating covering the substrate, the multilayer coating comprising first and second coating layers which are alternately laminated on the substrate, each of the first coating layers having and average thickness of 0.10-0.50 μm and containing titanium therein, each of the second coating layers having and average thickness of 0.10-0.50 μm and containing aluminum therein, the multilayer coating having and average thickness of 0.50-10.0 μm.
Claims19
A hard multilayer coated tool comprising:
- a substrate;
- and
- a multilayer coating covering said substrate, said multilayer coating comprising first and second coating layers which are alternately laminated on said substrate, each of said first coating layers having an average thickness of 0.10-0.50 μm and containing titanium therein, each of said second coating layers having an average thickness of 0.10-0.50 μm and containing aluminum therein, said multilayer coating having an average thickness of 0.50-10.0 μm.
Dependencies are inferred from the claim text.