Back to results
US 7,204,663 B2Granted
Multi-purpose end-mill
AssigneeHanita Metal Works, Ltd.
InventorsAvi Dov, Vladimir Volokh
Life of this patent
Estimating the term…
Abstract
A multi-purpose end-mill to be used for different machining purposes, in particularly useful for closed or open contours machining. The end-mill comprises a cylindrical shank portion connected to a first cutting portion provided with a plurality of spaced-apart cutting teeth and a second portion provided with a plurality of different spaced-apart cutting teeth.
Claims20
An end mill comprising:
- a shank portion being configured to be gripped in a tool;
- a cutting portion having a central longitudinal axis;
- said cutting portion comprising:
- a central core portion;
- a first cutting section being configured to perform a finishing machining;
- said first cutting section being connected to said shank portion;
- said first cutting section comprising:
- a plurality of cutting edges being disposed to project from said central core portion;
- and
- a plurality of flutes disposed adjacent their corresponding cutting edges;
- a second cutting section being configured to perform a rough machining;
- said second cutting section being connected to said first cutting section;
- said first cutting section being disposed between said shank portion and said second cutting section along the central longitudinal axis;
- said second cutting section comprising:
- a plurality of cutting edges being disposed to project from said central core portion;
- and
- a plurality of flutes disposed adjacent their corresponding cutting edge portions;
- each of said plurality of cutting edges of said first cutting section being disposed a first distance from said central longitudinal axis;
- each of said plurality of cutting edges of said second cutting section being disposed a second distance from said central longitudinal axis;
- said first distance being greater than said second distance;
- said first cutting section having a larger number of cutting edges and flutes than said second cutting section;
- said flutes in said second cutting section having a total cross-sectional area being sufficiently large to permit removal of chips during rough machining;
- said flutes in said first cutting section having a total cross-sectional area being sufficiently large to permit removal of chips during finishing machining;
- and
- the total cross-sectional area of said flutes in said second cutting section being substantially greater than the total cross-sectional area of said flutes in said first cutting section.
22 more elements
An end mill comprising:
- a shank portion being configured to be gripped in a tool;
- a cutting portion having a central longitudinal axis;
- said cutting portion comprising:
- a central core portion;
- a first cutting section being configured to perform a finishing machining;
- said first cutting section being connected to said shank portion;
- said first cutting section comprising:
- a plurality of cutting edges being disposed to project from said central core portion;
- and
- a plurality of flutes disposed adjacent their corresponding cutting edges;
- a second cutting section being configured to perform a rough machining;
- said second cutting section being connected to said first cutting section;
- said first cutting section being disposed between said shank portion and said second cutting section along the central longitudinal axis;
- said second cutting section comprising:
- a plurality of cutting edges being disposed to project from said central core portion;
- and
- a plurality of flutes disposed adjacent their corresponding cutting edge portions;
- each of said plurality of cutting edges of said first cutting section being disposed a first distance from said central longitudinal axis;
- each of said plurality of cutting edges of said second cutting section being disposed a second distance from said central longitudinal axis;
- said first distance being greater than said second distance;
- said flutes in said second cutting section having a total cross-sectional area being sufficiently large to permit removal of chips during rough machining;
- said flutes in said first cutting section having a total cross-sectional area being sufficiently large to permit removal of chips during finishing machining;
- and
- the total cross-sectional area of said flutes in said second cutting section being substantially greater than the total cross-sectional area of said flutes in said first cutting section.
21 more elements
An end mill comprising:
- a shank portion being configured to be gripped in a tool;
- a cutting portion having a central longitudinal axis;
- said cutting portion comprising:
- a central core portion;
- a first cutting section being configured to perform a finishing machining;
- said first cutting section being connected to said shank portion;
- said first cutting section comprising:
- a plurality of cutting edges being disposed to project from said central core portion;
- and
- a plurality of flutes disposed adjacent their corresponding cutting edges;
- a second cutting section being configured to perform a rough machining;
- said second cutting section being connected to said first cutting section;
- said first cutting section being disposed between said shank portion and said second cutting section along the central longitudinal axis;
- said second cutting section comprising:
- a plurality of cutting edges being disposed to project from said central core portion;
- and
- a plurality of flutes disposed adjacent their
- corresponding cutting edge portions;
- each of said plurality of cutting edges of said first cutting section being disposed a first distance from said central longitudinal axis;
- each of said plurality of cutting edges of said second cutting section being disposed a second distance from said central longitudinal axis;
- and
- said first distance being greater than said second distance.
19 more elements
Dependencies are inferred from the claim text.