Laser brazing device and method of cutting brazing wire using laser brazing device

摘要

PROBLEM TO BE SOLVED: To achieve reduction of wire consumption and space-saving in which there is no need of securing a work area to straighten the tip of a brazing wire, and there is no need of preparation of melting the tip of the wire before starting the next laser brazing.SOLUTION: Control means 21 stops, when interruption or stoppage of laser brazing is detected, feeding of a brazing wire 6 by a wire feeding part 5, performs an opening operation of an on-off valve 10 interposed in a compressive gas introduction passage 9 to discharge compressive gas from an end part of a wire delivery part 3, and activates the wire feeding part 5 in such a state to lift and cut off the end part of the brazing wire from an irradiation point S.SELECTED DRAWING: Figure 1