Patent ID: 8968054
Filing Date: 2015-03-03
Classification: B28D

Abstract:
1. A method for cooling a cylindrical workpiece during wire sawing, the workpiece being made of semiconductor material having a surface including two end faces and a lateral face, the method comprising: sawing the workpiece with a wire saw including a wire web having wire sections arranged in parallel by penetrating the wire sections into the workpiece by an oppositely directed relative movement of the wire sections and the workpiece; disposing wipers so as to bear on a surface of the workpiece; controlling the temperature of the workpiece during the wire sawing using a liquid coolant applied onto the workpiece above the wipers bearing on the workpiece surface so as to remove the liquid coolant with the wipers bearing on the workpiece surface wherein the wire sections of the wire web penetrate into the workpiece below the wipers bearing on the workpiece surface.