Patent ID: 7012215

Claim:
A laser machining apparatus comprising: a laser beam machine having a machining head irradiating a laser beam on a workpiece; a laser oscillator generating the laser beam; a controller controlling said laser beam machine by delivering motion commands to move the machining head relatively to the workpiece at predetermined interpolation periods, and controlling said laser oscillator to output the laser beam in accordance with motion of the machining head of the laser beam machine, said controller including a timing data generating unit to generate timing data defining time to deliver a laser output control signal to said laser oscillator in terms of a time period from a start of an interpolation period in which the laser output control signal is to be delivered, or in terms of a ratio of dividing said interpolation period; and a laser output control signal generating unit to receive the timing data from said timing data generating unit and to delay a delivery of the laser output control signal to said laser oscillator by the time period from the start of said interpolation period or by a time period calculated based on the ratio of dividing the interpolation period.