Cutting tool and method for cutting material
AssigneeSandvik Intellectual Property AB
InventorsCarsten Günther, Jan Eggink, Jan Van Frankenhuyzen
Life of this patent
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Abstract
Tool for cutting materials with a rotatable body having a rotation axis and cutting edges for cutting the material during movement of the body in a first direction parallel to the rotation axis. In order to stabilize the tool during cutting the cutting edges comprise inner cutting edges laying on a first surface of revolution which is in the first direction higher at a larger diameter and lower at a smaller diameter. The invention includes methods for using the tool.
Claims22
Tool for cutting materials comprising:
- a rotatable body with a rotation axis and cutting edges for cutting the material during movement of the body in a first direction parallel to the rotation axis,
- wherein the cutting edges comprise inner cutting edges laying on a first surface of revolution which is in the first direction higher at a larger diameter and lower at a smaller diameter,
- wherein at a diameter larger than the inner cutting edges outer cutting edges are laying on a second surface of revolution which is in the first direction lower at a larger diameter and higher at a smaller diameter, and
- wherein a cone angle α1 is larger than 65°,
- wherein the first surface and the second surface intersect at a circle and the inner cutting edges and the outer cutting edges extend to this circle, and
- wherein the diameter of the circle falls in the range from between 0.5 D and 0.9 D.
Tool for cutting materials comprising:
- a rotatable body with a rotation axis and cutting edges for cutting the material during movement of the body in a first direction parallel to the rotation axis,
- wherein the cutting edges comprise inner cutting edges laying on a first surface of revolution which is in the first direction higher at a larger diameter and lower at a smaller diameter,
- wherein at a diameter larger than the inner cutting edges outer cutting edges are laying on a second surface of revolution which is in the first direction lower at a larger diameter and higher at a smaller diameter,
- wherein the first surface and/or the second surface are a cone, and
- wherein the cone angles (α2,α1) are both larger than 65.
Tool for cutting materials comprising:
- a rotatable body with a rotation axis and cutting edges for cutting the material during movement of the body in a first direction parallel to the rotation axis,
- wherein the cutting edges comprise inner cutting edges laying on a first surface of revolution which is in the first direction higher at a larger diameter and lower at a smaller diameter,
- wherein at a diameter larger than the inner cutting edges outer cutting edges are laying on a second surface of revolution which is in the first direction lower at a larger diameter and higher at a smaller diameter,
- wherein a cone angle α1 is larger than 65°, and
- wherein the transition from the first cutting edge to the second cutting edge occurs along a rounded tip portion having a radius r of curvature from between 0.1 mm and 2 mm.
Dependencies are inferred from the claim text.