发明名称 Method for simultaneously cutting a multiplicity of slices of particularly uniform thickness from a workpiece
摘要 A method for simultaneously cutting a multiplicity of slices from a cylindrical workpiece, along strictly convex cutting faces, by supplying a suspension of hard substances in a carrier liquid, as cutting medium, to wire portions, while the wire portions, having a longitudinal tension, define a relative motion to the workpiece as a result of wire guide roller rotation with continual alternation between a first direction of rotation and a second direction of rotation, which is opposite to the first direction of rotation, wherein, during the rotation in the first direction, the wire is moved a first length, and during the rotation in the second direction, the wire is moved a second length, and the second length is shorter than the first, and at the cutting operation start a first longitudinal wire tension is greater than a second longitudinal tension at the end.
申请公布号 US9573296(B2) 申请公布日期 2017.02.21
申请号 US201514691646 申请日期 2015.04.21
申请人 SILTRONIC AG 发明人 Pietsch Georg
分类号 B24D5/00;B28D5/04;B24B27/06;B23D57/00 主分类号 B24D5/00
代理机构 Leydig, Voit & Mayer, Ltd. 代理人 Leydig, Voit & Mayer, Ltd.
主权项 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.
地址 Munich DE
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