Milling method
AssigneeAlstom (Switzerland) Ltd
InventorsHartmut Fenkl, Martin Probst, Paul Slepcevic
Life of this patent
Estimating the term…
Abstract
A milling method is provided in which a finished part of any desired contour is milled from a blank of any desired contour by the milling tool being guided on a continuous, spiral guide path from the blank continuously to the finished part. In this case, material is continuously removed during the milling operation without ever lifting the tool or clamping the workpiece in place again. This results in a reduced machining time of the workpiece. The continuous, spiral guide path permits a harmonic change of form from the blank to the finished part with smooth guidance of the tool. The method can also be carried out with ceramic tools.
Claims14
A milling method for producing a finished part from a blank utilizing a milling tool wherein:
- first of all, auxiliary lines are produced, and these first auxiliary lines run like electrostatic field lines between a profile of the finished part and a profile of the blank;
- then, a spiral guide path is produced dependent upon these electrostatic field lines, and this spiral guide path starts at the profile of the blank like a continuous variation of the electrostatic potential between the profile of the blank and the profile of the finished part and runs continuously and spirally around the finished part until the profile of the finished part is reached;
- and finally, moving said milling tool along said spiral guide path.
A milling method for producing any desired finished part from any desired blank by means of a milling tool, wherein the milling tool is guided along a continuous guide path from an outer contour of the blank to a contour of the finished part and a continuous change of form from the blank to the finished part is achieved with continuous material removal, wherein the milling tool is moved along a first three-dimensional, spiral guide path in a longitudinal direction of the finished part and, after reaching the end of the finished part, is moved along a two-dimensional, spiral guide path to a next deeper-set three-dimensional, spiral guide path and is then moved along this three-dimensional guide path in the opposite longitudinal direction, and wherein the above steps are repeated until a profile of the finished part has been reached.
A milling method for producing a finished part from a blank utilizing a milling tool, comprising the steps of:
- producing auxiliary lines, said auxiliary lines running around the finished part like electrostatic equipotential lines;
- producing a spiral guide path dependent upon said electrostatic equipotential lines, said spiral guide path starting at the profile of the blank like a continuous variation of the electrostatic equipotential lines between the profile of the blank and the profile of the finished part and running continuously and spirally around the finished part until the profile of the finished part is reached;
- moving said milling tool along said spiral guide path so that the blank is roughened down to a shape of the finished part wherein a shape of the blank is distinct from the shape of the finished part, the blank continuously changing form from the blank to the finished part by continuously removing material.
Dependencies are inferred from the claim text.