Patent ID: 9662804
Date: 2017-05-30
CPC Classifications: B28D

Claim:
1. A method of sawing a multiplicity of wafers from a workpiece using a wire web of a wire saw, the method comprising: providing a wire web including a plurality of parallel wire sections wherein the wire web is spanned by at least two wire guide rollers, each wire guide roller comprising a core having two sides surfaces and a lateral surface, each core being composed of a first material and comprising at least two separate cavities; rotatably mounting each core along its longitudinal axis; enclosing the lateral surface of each core by a jacket composed of a second material, the jacket being fixed on at least one side surface of the wire guide roller using at least one clamping ring, and the jacket being configured to expand laterally over the at least one clamping ring, thereby controlling thermally induced expansion of the jacket; and cutting parallel grooves for guiding the wire sections of the wire web into the jacket, wherein a length of the jacket is altered thermally by means of at least one cavity containing a first temperature-regulating medium.