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US 6,345,941 B1Granted
Thread milling tool having helical flutes
AssigneeATI Properties, Inc.
InventorsX. Daniel Fang, David J. Wills, Clarence E. Blackburn
Life of this patent
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Abstract
A thread milling tool includes a proximal shank portion and a distal cutting portion. The cutting portion includes at least one thread milling tooth and at least one flute oriented helically, or spirally, about a rotational axis of the tool. The helix angle of the thread milling tool of at least 20°. The cutting portion may be configured to form internal or external threads in a workpiece as the cutting portion moves relative to the workpiece.
Claims10
A thread milling tool comprising:
- a proximal shank portion;
- a distal cutting portion comprising a plurality of complete thread milling teeth defining a taper angle;
- and
- at least one helically oriented flute defined in said cutting portion, wherein said helical flute is defined by a helix angle of at least 20°.
1 more element
Dependencies are inferred from the claim text.