Method of milling brittle materials using a polycrystalline diamond end milling tool
AssigneeElement Six (UK) Limited
InventorLuiz Fernando Penna Franca
Life of this patent
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Abstract
Herein is provided a method of milling a brittle workpiece (46) using a milling tool (10), •—the workpiece (46) comprising a material, the material having a Ductile-Brittle Transition Undeformed Chip Thickness, DBhrn, •—the milling tool (10) comprising a tool shank (12) having an axis of rotation (14), and further comprising a tool head (16) comprising superhard material at one end thereof, the tool head (16) having a diameter (42), and •—operating the milling tool (10) such that an Undeformed Chip Thickness, hm, of the workpiece (46) is less than said Ductile-Brittle Transition Undeformed Chip Thickness, DBhm of the material.
Claims21
A method of milling a brittle workpiece using a milling tool,
- the workpiece comprising a material, the material having a Ductile-Brittle Transition Undeformed Chip Thickness, DBhm,
- the milling tool comprising a tool shank having an axis of rotation, and further comprising a tool head comprising superhard material at one end thereof, the tool head having a diameter D, and
- operating the milling tool such that an Undeformed Chip Thickness, hm, of the workpiece is less than said Ductile-Brittle Transition Undeformed Chip Thickness, DBhm of the material.
(canceled)
Dependencies are inferred from the claim text.