NOVELTY - The device has side surface stripping slicing stage that is provided with respect to guide rail so that rotation cutting blade diameter surface mutually oppose pair of peripheral cutting edge on both sides of workpiece support shaft of clamping mechanism. One pair of pressurization cooling fluid supply pad (96a) of peripheral-cutting-edge rolling self compensation mechanism (96) is provided in front and rear surfaces on both sides of peripheral cutting edge (91a) in position above cylindrical silicon ingot block.    USE - Cutting device of cylindrical silicon ingot block for solar power battery.    ADVANTAGE - The device can suppress rolling width of peripheral cutting edge small so that generation amount of chip of ingot block can be decreased, by providing pressurization cooling fluid supply pad in front and rear surfaces on both sides of peripheral cutting edge. The need for performing polishing, grinding and printed wiring process is eliminated so that damage of workpiece is prevented.    DETAILED DESCRIPTION - The device has work table for reciprocating guide rail provided on top of frame in left-right direction. A clamping mechanism has pair of headstock and tail stock mounted on work table. A drive mechanism drives work table on which workpiece is supported by clamping mechanism to left side from right side direction. The clamping mechanism has stand-by position stage provided behind loading/unloading stage. A crystal orientation detection has infrared rays displacement sensor that is provided in load port position of loading/unloading stage. Laser beam is irradiated toward shaft of cylindrical single-crystal silicon ingot block from displacement sensor. The shaft is rotated about an angle of 360 degrees using servomotor of headstock of clamp apparatus with encoder so that crystal orientation position of cylindrical single-crystal silicon ingot block is centered. The correlation diagram of rotation angle and pulse peak is displayed. Cooling fluid of a 20-35-Kgf/cm2 pressure is supplied to liquid storage space (96v) of pair of pressurization cooling fluid supply pad of peripheral-cutting edge rolling self-compensation mechanism with pump (96p) in front and rear surface of peripheral cutting edge, during cooling process. An INDEPENDENT CLAIM is included for cutting method.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of the peripheral-cutting-edge rolling self compensation mechanism.    Peripheral cutting edge (91a)    Peripheral-cutting-edge rolling self compensation mechanism (96)    Pressurization cooling fluid supply pad (96a)    Pump (96p)    Liquid storage space (96v)