Robotics in Manufacturing

Application

Laser Welding

Robotic laser welding guides a fiber-delivered laser head along a seam for narrow, low-heat welds. It suits thin sheet metal and precision assemblies where distortion has to stay minimal.

Laser welding robots move a scanning or fixed-optic welding head along the joint line at speeds well above conventional arc welding, since the laser deposits heat in a much smaller zone.

Path accuracy is the limiting factor, since the laser spot is small and any deviation shows up as a weak or incomplete fusion zone. Seam tracking sensors or vision guidance correct for fixture and part tolerance.

The fiber delivery cable and any coaxial gas nozzle need protected routing through the arm, and the cell requires laser safety enclosures and interlocks around the work envelope.

Related applications

arc weldingpart inspectionquality inspection

Common questions

What robots are used for laser welding?
Laser Welding suits 6 axis industrial, collaborative robots. Examples include fanuc m 20id 25, kuka kr 10 r1100, yaskawa motoman gp25.
What payload and reach does laser welding need?
Payload is typically 5 to 20 kg with reach around 1400 to 2000 mm.
What matters most for laser welding?
Sub-millimeter path accuracy. Seam tracking or vision guidance. Laser safety enclosure and interlocks. Protected fiber cable routing through the arm.