US 8,475,088 B2Granted

Device for milling of materials

AssigneeSandvik Intellectual Property AB

InventorTord Engström

Life of this patent

Estimating the term…

Loading patent…

Abstract

A device and a method of making thereof includes a milling cutter body that is connectable to a rotatable spindle or holder. The milling cutter body is provided with at least one series of a plurality of tangentially spaced-apart cutting edges or a plurality of tangentially spaced-apart seats intended for milling inserts having at least one cutting edge. The cutting edges or seats of the series are arranged such that, within the series, a first angle between a radius that intersects a first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction of rotation around the rotation axis, is smaller than a second angle between the radius that intersects the first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction opposite the direction of rotation.

Claims11

Dependent claims

Device for milling of materials, comprising:

a milling cutter body that is connectable to a rotatable spindle or holder and defines a rotation axis, the milling cutter body being provided with at least one series of a plurality of tangentially spaced-apart cutting edges or a plurality of tangentially spaced-apart seats intended for milling inserts having at least one cutting edge, with the cutting edges of the series being arranged to machine a common surface in a workpiece, the cutting edges or seats of the series being arranged in such a way that, within the series, a first angle between a radius that intersects a first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction of rotation around the rotation axis, is smaller than a second angle between the radius that intersects the first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction opposite said direction of rotation, the first and second angle being in a radial plane perpendicular to the rotation axis, and within the first and second angle, respectively, there is an absence of any other cutting edge of the same series,
wherein, within the series, a radial distance of the first cutting edge to the rotation axis is larger than a radial distance of the another cutting edge, which is situated closest to the first cutting edge in the direction opposite said direction of rotation, to the rotation axis, said radial distances to the rotation axis lying in said radial plane, and
wherein, within the series, the radial distance of the first cutting edge to the rotation axis and the radial distance of the another cutting edge, which is situated closest to the first cutting edge in the direction opposite said direction of rotation, to the rotation axis are set in relation to the respective angles such that the first cutting edge and the another cutting edge, which is situated closest to the first cutting edge in the direction opposite said direction of rotation, cut chips from a work piece that have essentially the same chip thickness, said radial distances to the rotation axis lying in said radial plane.

Device for milling of materials, comprising a milling cutter body that is connectable to a rotatable spindle or holder and defines a rotation axis, the milling cutter body being provided with at least one series of a plurality of tangentially spaced-apart cutting edges or a plurality of tangentially spaced-apart seats intended for milling inserts having at least one cutting edge, with the cutting edges of the series being arranged to machine a common surface in a workpiece, the cutting edges or seats of the series being arranged in such a way that, within the series, a first angle between a radius that intersects a first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction of rotation around the rotation axis, is smaller than a second angle between the radius that intersects the first cutting edge and a radius that intersects another cutting edge, which is situated closest to the first cutting edge in a direction opposite said direction of rotation, the first and second angle being in a radial plane perpendicular to the rotation axis, and within the first and second angle, respectively, there is an absence of any other cutting edge of the same series,

wherein, within the series, a radial distance of the first cutting edge to the rotation axis is larger than a radial distance of the another cutting edge, which is situated closest to the first cutting edge in the direction opposite said direction of rotation, to the rotation axis, said radial distances to the rotation axis lying in said radial plane, and
wherein the cutting edges of the series are arranged to cut chips from a workpiece that have essentially the same chip thickness as the chip thickness of the chips that are cut by the other cutting edges in the same series.

Dependencies are inferred from the claim text.

Facts

Application: 12/967,287Filed 14 Dec 2010
Priority: SE 095099018 Dec 2009
Published: US 2011/0150583 A123 Jun 2011
Granted: 2 Jul 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B23C 5/20
Characterised by physical features other than shape: with removable cutter bits or teeth or cutting inserts
B23C 5/06
Characterised by the shape of the cutter: face-milling cutters, i.e. having only or primarily a substantially flat cutting surface
B23C 5/10
Characterised by the shape of the cutter: shank-type cutters, i.e. with an integral shaft
B23C 2210/0414
Cutting angles: different