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US 5,771,876 AGranted
Wire saw for and method of cutting off slices from a workpiece
AssigneeWacker Siltronic Gesellschaft fur Halbleitermaterialien AG
InventorKarl Egglhuber
Life of this patent
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AssigneeWacker Siltronic Gesellschaft fur Halbleitermaterialien AG
InventorKarl Egglhuber
Estimating the term…
A wire saw for, and a method of, cutting off slices from a workpiece. The re saw has a cutting head, which contains a plurality of wire guide rollers and around which a multiplicity of wire sections lying parallel to one another and forming plane wire webs are moved, a holding arm which carries the workpiece, and a feed, by means of which the wire sections of one of the wire frames cut through the workpiece while an auxiliary sawing medium is supplied. In one embodiment of the wire saw, the feed guide is arranged at the side of the cutting head and the holding arm can be swivelled parallel to the wire web. In another embodiment, holding arm is swivellable parallel to the wire web and the feed has a feed guide which guides the cutting head with the wire web toward the workpiece. For the purpose of a change of workpiece, the workpiece is transported by a holding arm carrying it from a sawing position above a wire web into a deposit position, the workpiece is released from the holding arm in the deposit position, a new workpiece is picked up from a pick-up position by the holding arm, and the new workpiece is transported by the holding arm into a sawing position above a wire web. The cutting head and a second cutting head may be used alternately for cutting off slices, in which the cutting head not in use is being prepared for future use while the other cutting head is currently in use.
A wire saw for cutting off slices from a workpiece comprising
A wire saw for cutting off slices from a workpiece comprising
A method of cutting off slices from a workpiece by means of a wire saw having a cutting head, said cutting head having a side and containing a plurality of wire guide rollers and around which a multiplicity of wire sections lying parallel to one another and forming a plane wire web are moved, and a feed, by means of which the wire sections of the wire web cut through the workpiece while an auxiliary sawing medium is supplied, wherein, for the purpose of a change of workpiece comprising the steps of
A method of cutting off slices from a workpiece by means of a wire saw having a cutting head, which contains a plurality of wire guide rollers and around which a multiplicity of wire sections lying parallel to one another and forming a plane wire web are moved, and a feed, by means of which the wire sections of the wire web cut through the workpiece while an auxiliary sawing medium is supplied, comprising the steps of
Dependencies are inferred from the claim text.