Machine tool, workpiece machining method and use in a machine tool or in a workpiece machining method
First Claim
1. A method for machining a workpiece using a milling tool, wherein the milling tool engages with the workpiece and a cutting motion is induced between the milling tool and the workpiece, whereina relative first vibration motion between the workpiece and the milling tool, which is superimposed on the cutting motion, is induced in such a way that one or more characteristic values of the first vibration motion and one or more characteristic values of the cutting motion are set related to one another, andwherein parameters are defined to satisfy one or more of the following equations:
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fv=vs/lw
φ
=k5*π
wherein fv is a vibration frequency of the first vibration motion,vs is a feed rate of a cutting edge on a workpiece surface,lw is a wavelength of a pattern of the first vibration motion, which is formed on the workpiece surface,φ
is a phase displacement in a feed direction of the cutting edge between several pairs of patterns in adjacent milled tracks, andk5 is a factor ranging from −
1 to 1.
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Accused Products
Abstract
In a method for machining a workpiece using a tool, the tool engages with the workpiece and between the two a cutting motion is induced. Furthermore, a relative first vibration motion between workpiece and tool, which is superimposed on the cutting motion, is induced in such a way that one or more characteristic values of the first vibration motion and one or more characteristic values of the cutting motion are adjusted in relation to one another. The superimposed vibration motion can also be induced in such a way that distinctive surface zones of the workpiece are generated.
25 Citations
16 Claims
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1. A method for machining a workpiece using a milling tool, wherein the milling tool engages with the workpiece and a cutting motion is induced between the milling tool and the workpiece, wherein
a relative first vibration motion between the workpiece and the milling tool, which is superimposed on the cutting motion, is induced in such a way that one or more characteristic values of the first vibration motion and one or more characteristic values of the cutting motion are set related to one another, and wherein parameters are defined to satisfy one or more of the following equations: -
fv=vs/lw
φ
=k5*πwherein fv is a vibration frequency of the first vibration motion, vs is a feed rate of a cutting edge on a workpiece surface, lw is a wavelength of a pattern of the first vibration motion, which is formed on the workpiece surface, φ
is a phase displacement in a feed direction of the cutting edge between several pairs of patterns in adjacent milled tracks, andk5 is a factor ranging from −
1 to 1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for machining a workpiece using a drill, wherein the drill engages with the workpiece and a cutting motion is induced between the workpiece and the drill, wherein
a relative first vibration motion between the workpiece and the drill, which is superimposed on the cutting motion, is induced in such a way that one or more characteristic values of the first vibration motion and one or more characteristic values of the cutting motion are set related to one another, wherein parameters are defined to satisfy one more of the following equations: -
fv=(n2+k6)*fs
av=k7*vv/fs
ls=k8*av15wherein; fv is a vibration frequency of the first vibration motion, fs is a rotational frequency of the drill, av is an amplitude of the first vibration motion which can be directed vertically to a rotational motion of the drill and vertically or in parallel to a workpiece surface, vv is a feed rate of the drill along a drill axis, ls is a length of cutting edge segments at a lateral edge of the drill defining an angle of twist, n2 is an integer, and k6 to k8 are real parameters with 0≦
k6, k7, k8<
1.
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Specification