| 摘要 |
PURPOSE:To prevent the generation of a crack or the like at the end of working by providing an element for detection of acoustic emission to the work and controlling the energy density, acceleration, etc. of the irradiation beam in accordance with the detected signal thereof. CONSTITUTION:A high energy beam is irradiated from an irradiating device 1 to the work 2, whereby the work 2 is machined. An element 7 that detects acoustic emulsion is provided to the work 2, and the detected signal thereof is passed through an amplifier 8 and a filter 9, and is removed of noise, etc., after which this signal is fed to controllers 10, 11. The controller 10 controls the device 1 and the controller 11 controls an NC device 6 which controls the movement of the work 2. |
