Abstract: A fiber laser processing device includes: an air purge unit having a low-dew-pointizer section for changing compressed air for purging supplied from the exterior into dry air with a low dew point by means of a gas separation membrane module; a fiber laser oscillator having a combiner for combining and emitting the laser lights respectively outputted from the plurality of fiber laser modules to the exterior, and a distributor for distributing and supplying the dry air respectively to the plurality of fiber laser modules; and a laser processing machine for carrying out laser machining on a workpiece by means of the laser lights emitted from the combiner.

Abstract: A fiber laser processing device includes: an air purge unit having a low-dew-pointizer section for changing compressed air for purging supplied from the exterior into dry air with a low dew point by means of a gas separation membrane module; a fiber laser oscillator having a combiner for combining and emitting the laser lights respectively outputted from the plurality of fiber laser modules to the exterior, and a distributor for distributing and supplying the dry air respectively to the plurality of fiber laser modules; and a laser processing machine for carrying out laser machining on a workpiece by means of the laser lights emitted from the combiner.

Abstract: A wire cutting electric discharge machine which carries out an electric discharge process on a workpiece using a wire electrode of normal diameter, for example, 0.1 mm or greater, can also be used with a fine wire electrode with a diameter of less than 0.1 mm. The fine wire electrode can only withstand a small tension because of its extremely small diameter, so that a wire disposal device for disposing a normal wire electrode cannot be used. Therefore, a wire disposal device for a fine wire electrode is provided adjacent to the lower wire guide device, and the force with which the wire is wound up by the wire disposal device is sufficiently smaller than the tension of the fine wire electrode, so that the wire disposal process does not produce breakage in the fine wire electrode. In addition, the lower wire guide device can be used in common for a normal wire electrode, and as required, can be changed for use with a fine wire electrode.

Abstract: A machining control method for an electrical discharge machine compensates for the lagging of the wire electrode as the electrode is advanced from a straight line portion to a change of direction portion of the outline to be machined. The wire electrode is advanced from the straight line portion of the outline until it reaches the change of direction point of the outline and is then halted until the wire electrode lag is corrected. During the halt, machining takes place under a different set of conditions. When the lag is corrected, the wire electrode is advanced along the change of direction portion under a third set of machining conditions. When the wire electrode reaches another straight line portion, the outline machining of the workpiece is resumed under the first set of machining conditions. Also disclosed is a method of controlling the positioning of a workpiece by trial positioning a large number of workpieces having a variety of weights under a variety of load conditions of the control motor.