Abstract: [Problem to be Solved] When a wood raw material is heat-pressed in order to produce a woody material or woody board, steam is generated in an interior of the wood raw material. The heat-pressed wood raw material is then decompressed with the steam staying in the interior of the wood raw material. This causes a puncture or a rupture of the woody material. The puncture occurs in the last phase of the production process, thus spoiling the entire production process. In order to avoid the puncture, the wood raw material needs to be dried completely. This requires a large amount of energy.

Abstract: [Problem to be Solved] When a wood raw material is heat-pressed in order to produce a woody material or woody board, steam is generated in an interior of the wood raw material. The heat-pressed wood raw material is then decompressed with the steam staying in the interior of the wood raw material. This causes a puncture or a rupture of the woody material. The puncture occurs in the last phase of the production process, thus spoiling the entire production process. In order to avoid the puncture, the wood raw material needs to be dried completely. This requires a large amount of energy.

Abstract: A wire-electrical discharge machine infuses a processing liquid in a gap between a wire and a workpiece and processes the workpiece using predetermined processing parameters. The machine includes a processing parameter memory that stores processing parameters, a second memory that stores a relationship between nozzle height and processing energy, a processing energy determining unit that determines the processing energy, for example, during rough processing, based on the relationship, and a processing parameter changing unit that changes the processing parameters based on the processing energy. The workpiece is processed using the changed processing parameters. According to this construction, wire breakage can be prevented and the accuracy of the processed surface can be improved.

Abstract: A device for quality decision of a machining state of an electric spark machine to apply voltage in a pulse form to a machining space between an electrode and a workpiece for contour machining by pulse discharging includes a plurality of machining state detection apparatus each of which detects a different physical quantity that denotes a machining state. The physical quantity being machining speed, machining voltage, machining current, on and off times of voltage applied to an electrode, total number of discharges, number of abnormal discharges, abnormal discharging rate, and discharging frequency. Furthermore, a machining state evaluation and quality decision apparatus (49) synthetically evaluates the machining state and quality decision of the machining state based on a combination of comparison of the physical quantities detected by the machining state detection apparatus with predetermined standard values for each of the physical quantities.

Abstract: A wire-electrical discharge machine infuses a processing liquid in a gap between a wire and a workpiece and processes the workpiece using predetermined processing parameters. The machine includes processing parameter storage means that stores processing parameters, means that stores a relationship between the nozzle heights and the amount of processing energy, processing energy determining means that determines the amount of processing energy, for example, during rough processing based on such relationship, and processing parameter changing means that changes the processing parameters based on the amount of processing energy. The workpiece is processed using the changed processing parameters. According to this construction, wire breakage can be prevented and the accuracy of the processed surface can be improved.

Abstract: When the surface roughness of a work face of the workpiece (2) fixed onto the surface plate table (8) in the work tank (14) in which the work fluid (17) is stored is more than a predetermined value, the bladder (15) capable of expanding or contracting by the pressure of fluid accommodated in the bladder (15) is contracted, and a space between the work tank (14) and the surface plate table (8) is filled with the work fluid (17), and electric discharge work is conducted. When the surface roughness of a work face of the workpiece (2) is not more than a predetermined value, the bladder (15) is expanded, and a quantity of the work fluid (17) getting into between the work tank (14) and the surface plate table (8) is reduced and electric discharge work is conducted.

Abstract: To easily correct the slant of a wire electrode to a workpiece by using the workpiece which is machined into a product and the wire electrode without a special jig. Discharge is generated by approaching a wire electrode 1 to a workpiece fixed on a table. The slant of the wire electrode and correcting amount are calculated by measuring the discharge for a prescribed period of time or a prescribed number of times, while taking the discharge position as a width or a distribution. Then, correction is performed. Therefore, it is possible to correct the slant of the wire electrode relative to the workpiece directly by using the wire electrode. Accordingly, it is possible to drastically reduce the time necessary for getting accuracy in fixing the workpiece on the table and the time necessary for arrangements such as verticality check of the wire electrode by discharge.

Abstract: The metal bond wheel forming apparatus includes rotation speed control means 11 for controlling the rotation speed of a grinding wheel 6; energy control means 9 for controlling discharge energy that is supplied to the gap between a wire electrode 1 and the grinding wheel 6; relative speed control means 17 for controlling a relative movement speed either for the wire electrode 1 or for the grinding wheel 6; and detailed machining control means 23 for controlling the rotation speed control means, the energy control means and the relative speed control means, for setting the rotation speed of the grinding wheel and discharge energy appropriate for detailed machining, and for setting the relative movement speed for the wire electrode or for the grinding wheel to enable high speed shaping during the detailed machining.

Abstract: An input section inputs a recording signal to be recorded on a recording medium. An identification signal generator generates a predetermined identification signal. A processor is connected to the input section and the identification signal generator, and selectively processes the recording signal and the identification signal. A detector is connected to the input section, the identification signal generator, and the processor, and detects the presence of a recording restriction signal from the recording signal so as to control the processor in accordance with a detection result. A recording section receives an output signal from the processor, and records the signal on the recording medium.

Abstract: An input section inputs a recording signal to be recorded on a recording medium. An identification signal generator generates a predetermined identification signal. A processor is connected to the input section and the identification signal generator, and selectively processes the recording signal and the identification signal. A detector is connected to the input section, the identification signal generator, and the processor, and detects the presence of a recording restriction signal from the recording signal so as to control the processor in accordance with a detection result. A recording section receives an output signal from the processor, and records the signal on the recording medium.

Abstract: The present invention provides a hydrostatic bearing type coupling for a vibrating machine. The coupling is interposed between a vibration table upon which a test specimen or the like is mounted and a vibrator in such a way that even when the vibration table is caused to vibrate three-dimensionally, there are free movements in the two directions.