Milling tool
AssigneesElement Six (UK) Limited, Element Six Limited
InventorsBrian GILROY, William Wayne LEAHY, Luiz Fernando PENNA FRANCA
Life of this patent
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Abstract
A milling tool for milling a material is provided. The milling tool comprises a tool shank having an axis of rotation, and further comprises a tool head at one end thereof. The tool head comprises at least two tiers, each tier comprising a plurality of flutes extending circumferentially around the tool head. The tool head comprises superhard material and the tiers are axially displaced from each other and separated by a non-cutting portion of the tool head.
Claims21
A milling tool for milling a material, the milling tool comprising a tool shank having an axis of rotation, and further comprising a tool head at one end thereof, the tool head comprising at least two tiers, each tier comprising a plurality of flutes extending circumferentially around the tool head, and wherein the tool head comprises superhard material and wherein the tiers are axially displaced from each other and separated by a non-cutting portion of the tool head.
(canceled)
A method of making a milling tool head, the method comprising the steps:
- a. providing a disc blank comprising a superhard material;
- b. machining at least one precursor tool head from the disc;
- c. forming a tier containing a plurality of flutes in the precursor tool head using a laser,
- d. repeating step c as required, to thereby form a tool head comprising at least two tiers, each tier comprising a plurality of flutes extending circumferentially around the tool head, and wherein the tool head comprises the superhard material, and wherein the tiers are axially displaced from each other and separated by a non-cutting portion of the tool head.
A method of making a milling tool head, the method comprising the steps of:
- a. providing a disc blank;
- b. machining at least one precursor tool head from the disc;
- c. forming a tier containing a plurality of flutes in the precursor tool head using a laser,
- d. repeating step c as required, to thereby form a tool head comprising at least two tiers, each tier comprising a plurality of flutes extending circumferentially around the tool head, and wherein the tool head comprises the superhard material, and wherein the tiers are axially displaced from each other and separated by a non-cutting portion of the tool head;
- and
- e. depositing polycrystalline diamond on the plurality of flutes using chemical vapour deposition.
Dependencies are inferred from the claim text.