Patent ID: 8716622
Filing Date: 2014-05-06
Classification: B23K

Abstract:
1. A laser welding apparatus for performing welding by irradiating a laser beam, the apparatus comprising: a laser oscillator operable to generate a laser beam; a laser irradiating device having a reflecting device configured to change an irradiating direction of the laser beam guided from the laser oscillator at a first focus moving speed; a moving device operable to move the laser irradiating device at a second focus moving speed, such that a resultant welding point speed of the laser beam is determined by the first focus moving speed and the second focus moving speed; and a control unit operable to store programmed values of the first focus moving speed and the second focus moving speed corresponding a desired resultant welding point speed, wherein when the second focus moving speed is changed from a programmed value speed to an override value, the control unit is arranged to control the first focus moving speed away from a programmed value such that the welding point speed becomes closer to the desired resultant welding point speed.