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US 9,700,969 B2Granted
Cutting inserts and cutting tool systems having sinusoidal and helical cutting edges
AssigneeKennametal Inc.
InventorsX. Daniel Fang, Frederick John Palmer, Jean-Luc Dufour, David J. Wills
Life of this patent
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Abstract
A cutting tool system is designed to have a combined sinusoidal-shaped and helical-shaped cutting edge formed by an assembly of aligned common cutting inserts each having a sinusoidal and helical cutting edge.
Claims23
A cutting tool system comprising:
- a tool holder comprising a plurality of common insert pockets positioned in a helical orientation about a longitudinal axis of the tool holder;
- and
- a plurality of common cutting inserts removably attachable to the plurality of common insert pockets in the tool holder to form at least one cutting flute on the tool holder, the at least one cutting flute comprising a helical grouping of common cutting inserts positioned in the insert pockets;
- wherein the common cutting inserts each comprise at least one sinusoidal and helical cutting edge;
- wherein two or more of the cutting inserts combine to define a sinusoidal wavelength shape defined by one period per cutting insert;
- and
- wherein the at least one cutting flute comprises a sinusoidal and helical cutting edge positioned about the longitudinal axis of the tool holder and formed by alignment of the individual sinusoidal and helical cutting edges of the common cutting inserts that comprise the at least one cutting flute.
4 more elements
A cutting tool system comprising:
- a tool holder comprising two or more series of common insert pockets, each series of common insert pockets positioned in a helical orientation about a longitudinal axis of the tool holder;
- and
- a plurality of common cutting inserts removably attachable to the common insert pockets in the tool holder to form two or more cutting flutes on the tool holder, the two or more cutting flutes each comprising a helical grouping of the common cutting inserts positioned in the insert pockets;
- wherein the common cutting inserts each comprise at least one sinusoidal and helical cutting edge;
- wherein two or more of the cutting inserts combine to define a sinusoidal wavelength shape defined by one period per cutting insert;
- and
- wherein the two or more cutting flutes each comprise a sinusoidal and helical cutting edge positioned about the longitudinal axis of the tool holder and formed by alignment of the individual sinusoidal and helical cutting edges of the common cutting inserts that comprise the two or more cutting flutes.
4 more elements
A cutting insert comprising two or more sinusoidal and helical cutting edges;
- wherein at least one of the two or more sinusoidal and helical cutting edges defines one period of a sinusoidal wavelength shape.
A method for producing a cutting tool system comprising:
- a tool holder comprising a plurality of common insert pockets positioned in a helical orientation about a longitudinal axis of the tool holder;
- and
- a plurality of common cutting inserts removably attachable to the plurality of common insert pockets in the tool holder to form at least one cutting flute on the tool holder, the at least one cutting flute comprising a helical grouping of common cutting inserts positioned in the insert pockets;
- wherein the common cutting inserts each comprise at least one sinusoidal and helical cutting edge;
- the method comprising:
- positioning a cutting insert having a sinusoidal-shaped cutting edge as if it were on the tool holder with a helix angle;
- and
- modifying the sinusoidal shape of the cutting edge of the cutting insert to coincide with a cylindrical surface defined by a cutting radius centered at a cutting axis of the cutting tool system;
- wherein two or more of the common cutting inserts combine to define a sinusoidal wavelength shape defined by one period per cutting insert.
6 more elements
Dependencies are inferred from the claim text.