Rotary milling process and device
AssigneeWidia GmbH
InventorReinhold Gesell
Life of this patent
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Abstract
The invention relates to a process and a device for machining of workpieces (10) like crankshafts or similar components which are rotated about their own axis during machining, at least two mutually independently operating rotary milling tools (15, 16, 21, 22) performing material-removing operations simultaneously at different points on the workpiece. In order to maximize the edge life of the tools used, with special regard to the most uniform wear possible on all the rotary milling tools, it is proposed that the rotation speed of the tools be matched or varied to provide an optimum cutting operation and the rotation speed of the second and any other rotary milling tool be controlled dependently upon the tool rotation speed predetermined by the matching or variation.
Claims16
A method of rotary milling workpieces that are rotated during machining about their own axes, whereby simultaneously at least two independently working rotary-milling tools conduct machining operations on different locations of the workpiece,
- wherein the workpiece rotation speed is varied or set to obtain an optimal machining with one rotary-milling tool and the tool rotation speed of the second and each further rotary-milling tool is set in accordance with the varying or set workpiece rotation speed;
- and
- wherein, with two rotary tools which simultaneously conduct milling operations, the predetermined chip thickness and the constant tool rotation speed of a first rotary milling tool are proportionately combined to determine the speed profile of the workpiece necessary to maximize the service life of the rotary milling tool and the tool rotation speed of the second rotary-milling tool is set in accordance with this speed profile.
Dependencies are inferred from the claim text.