Patent ID: 9573296
Date: 2017-02-21
CPC Classifications: B23D,B24B,B28D

Claim:
1. A method for simultaneously cutting a multiplicity of slices from a cylindrical workpiece having a diameter, using, in the presence of a liquid cutting medium, a wire saw including a sawing wire, the sawing wire spanning a wire grid including a multiplicity of wire portions disposed parallelwise between rotatable wire guide rollers, the wire portions having a longitudinal tension and the wire portions defining a relative motion in relation to the workpiece as a result of rotation of the wire guide rollers with continual alternation between a first rotation direction and a second rotation direction, the second rotation direction being opposite to the first rotation direction, the method comprising: moving the sawing wire by a first length during rotation in the first direction; moving the sawing wire by a second length during rotation in the second direction, the second length being less than the first length; at a first instant, applying a greater longitudinal wire portion tension than at a second instant, wherein the first instant is at cut-in of the wire portions into the workpiece with a first cut depth, wherein the second instant is at a second cut depth, wherein the second instant is after the first instant, and wherein the second instant is one at which an engagement length L of the wire portions in the workpiece is greater than 0.