| 摘要 |
PURPOSE:To perform the diesinking work without being accompanied by a vibration and a noise by performing the annular cutting work of a work by a laser beam by dislocating in the direction of an axis of rotation of the work from the direction to cross at right angles with the axis of rotation of the work. CONSTITUTION:A first laser torch 16 is inclined by an angle psi anticlockwise with respect to a vertical axis and a second laser torch 17 is inclined by the angle psi clockwise with respect to the vertical axis with a step 90. A machining head 11 is moved onto an axis O of rotation of the work W and a saddle 14 is moved to the prescribed height position with a step 91. Next, the machining head 11 is moved by a/2 to the left and continuously, the laser beams are projected from the first and second laser torches 16 and 17 to rotate a turn table 31. By this method, a part of the work W is cut annularly to obtain cut material. Afterward, the work is finished by an angle control means 81, a first movement control means 82 in the horizontal direction, a second movement control means 83 to lower, a position dislocation means 84 and an operation selection means 85 to select in an alternative way according to operating conditions. |
