Laser soldering machine is used to solder and braze metal strips with the help of laser diodes which focuses the laser beam and provides controlled heating of the alloy to be soldered to make a fast and non-destructive joint. The machine uses a controlled laser beam to transfer heat energy to the soldering point where the absorbed energy is used to heat the solder until it reaches the melting temperature. In laser soldering machine, there is absolutely no mechanical contact which makes it pure joint.
The laser soldering machine consists of a laser generator, focusing optics, fiber optics module, illuminator with motion module, computer vision module with an in-built camera and the X-Y positioning stage with servo control system. The laser diode generates the laser beam and modulates it. The optical system helps the laser beam to focus accurately on to the workpiece’s solder joint.
The temperature at the solder joint is generated by the absorption of the heat irradiation. The energy can be controlled precisely and is beneficial for reflow soldering with solder wire as well as soldering paste. The output is delivered to the solder area with the help of input coupling optics mounted on adjustable mounter fiber optics module, a connectorized fiber cable and output coupling optics.