Method for facing surfaces of workpieces
AssigneeAudi AG
InventorPeter Kopton
Life of this patent
Estimating the term…
Abstract
A method and a device for facing surfaces of workpieces, in particular made of light metal alloys, in which a cutting tool is moved in a feed direction relative to the surface and removes material at a defined thickness by cutting, wherein the cutting tool is moved in a defined feed direction with one or more cutter bars oriented substantially parallel to the surface. The cutter bars are always set at an angle of <90° but >0° with respect to the feed direction. In this way, surfaces with high surface quality can be produced, in particular for workpieces made of light metal, with cost-effective machining parameters.
Claims12
A method for facing a surface of a workpiece made of a light metal alloy, comprising:
- providing a cutting tool having one or more cutter bars having a length of 0 to 200 mm oriented substantially parallel to the surface of the workpiece, wherein the one or more cutter bars are adjusted at an angle >0° and <90° with respect to a defined feed direction;
- providing cooling channels for supplying to the cutter bars a minimum quantity lubrication (MQL) medium, coolant or an emulsion;
- moving the cutting tool relative to the surface in the defined feed direction, while moving the cutting tool relative to the surface in the defined feed direction, pivoting the one or more cutter bars about a pivot point of the cutting tool, wherein the pivot point is located at a center of the one or more cutter bars substantially in a central axis of a clamping device;
- and
- removing material with a defined thickness.
An apparatus disposed on a machine tool for facing a surface of a workpiece made of a light metal alloy, comprising:
- a cutting tool comprising a support body, a clamping device, at least one substantially linear cutter bar having a length of 0 to 200 mm attached to the clamping device, and cooling channels for supplying to the cutter bar a minimum quantity lubrication (MQL) medium, coolant or an emulsion, means for moving the cutting tool relative to the surface in the defined feed direction, while moving the cutting tool relative to the surface in the defined feed direction, and means for pivoting the one or more cutter bars about a pivot point of the cutting tool, wherein the pivot point is located at a center of the one or more cutter bars substantially in a central axis of a clamping device and removing material with a defined thickness,
- wherein the clamping device is constructed to be driven in a defined feed direction and with a rotary motion,
- wherein the at least one cutter bar of the cutting tool is oriented substantially parallel to the surface and moved at an angle >0° and <90° with respect to the defined feed direction.
Dependencies are inferred from the claim text.