Patent ID: 9381578
Filing Date: 2016-07-05
CPC Classification: B23B,B23C,Y10T

Claim Text:
1. A method for machining a through-hole in a wall of a component, comprising: setting in rotation on itself a cutting tool of radius r about a rotation axis, setting said rotation axis of the tool in rotation about a first orbital rotation axis parallel to, and eccentric by an eccentricity E with respect to, the rotation axis of the tool, making the cutting tool and the component effect a movement relative to one another so as to cause the cutting tool to interact with the component in such a way as to obtain a through-hole, withdrawing the cutting tool from the through-hole, wherein in setting the first orbital rotation axis in rotation, over at least one revolution, about a second orbital rotation axis parallel to, and eccentric by an amount f with respect to, the first orbital rotation axis, in using a first intermediate support that allows the cutting tool a rotational movement about its rotation axis and a second intermediate support that allows the first intermediate support a rotational movement about the first orbital rotational axis, the eccentricity (E) between the rotation axis of the tool and the first orbital rotation axis is fixed and the first intermediate support is at least one of statically and dynamically balanced.