Adaptive laser tool - FlexBeam

The “Flex Beam” laser soldering tool developed by Wolf offers the possibility of local and temporal power modulation by allowing the laser beam to be moved along any path over the workpiece as often as required.

Advantages:

For the first time, a laser soldering tool can be used to process fundamentally different shapes of solder joints on one product
Radiation through the PCB can be prevented by heating only the pin and the soldering pad
Joining partners with different heat capacities can have variable energy inputs for uniform soldering.

Principle

The beam coming from a laser diode is first collimated, shaped by apertures and then hits the scanner at a 45° angle. This acts as a movable mirror that can deflect the incident laser beam. The scanner mirror can move the laser beam across the solder joint so quickly that a uniform and faster energy input into the solder joint can be ensured.