Back to results
US 11,123,801 B2Granted
Cutting tool made by additive manufacturing
AssigneeKennametal Inc.
InventorPantcho Stoyanov
Life of this patent
Estimating the term…
Abstract
A cutting tool made by an additive manufacturing process is disclosed. The cutting tool has an exterior surface and an enclosed interior cavity defined by one or more inwardly facing surfaces. The interior cavity may have internal supports such as a lattice or a honeycomb structure. The cutting tool may be an insert, drill or endmill with coolant holes.
Claims20
A method of making a cutting tool comprising:
- forming a green cutting tool from a powder composition via a binder jetting process, the green cutting tool comprising an exterior surface and an enclosed interior cavity defined by inwardly facing surfaces, wherein one or more lattice structures are formed within the interior cavity and subsequently enclosed by the inwardly facing surfaces during the binder jetting process, and the interior cavity is supported by the one or more lattice structures;
- and
- sintering the green article to provide a sintered cutting tool having final density greater than 95% theoretical density, wherein the powder composition comprises a sintered hard particle component comprising a metallic binder component.
Dependencies are inferred from the claim text.