| 摘要 |
PROBLEM TO BE SOLVED: To perform a surface grinding by laying a fixed abrasive grain wire saw line between rolls, and providing a mechanism for imparting a vertical movement and a pitch feed or rocking between the wire saw line and a workpiece. SOLUTION: Fixed abrasive grain wire saws 1 are laid between horizontally parallel rolls 2A, 2B at an equal pitch to form a wire saw line. A mounting block 3 is constituted in such a manner that a workpiece 5 fixed to the mounting block 3 is brought into contact with the wire saw line by lowering the mounting block 3 and cut thereby. Further, the mounting block 3 is mounted on a vertically or Y-directionally and longitudinally or X-directionally moving feed mechanism. According to this structure, a cutting is performed while changing the position little by little in X-direction, whereby a prescribed quantity of grinding can be performed. A grinding work can be performed by use of the fixed abrasive grain wire saw 1, and a finishing can be also performed successively to a highly efficient cutting work. |
