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US 2018/0221962 A1Published application
Cutting Tool Made by Additive Manufacturing
AssigneeKennametal Inc.
InventorPantcho Stoyanov
Life of this patent
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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 the interior cavity is supported by one or more lattice structures;
- and
- sintering the green article to provide a sintered cutting tool having final density greater than 95% theoretical density.
Dependencies are inferred from the claim text.