Makoto Ryudo

Development of Laser Processing Robot Integrated System Solution (LAPRISS) for Remote Laser Welding

A newly developed laser processing robot integrated system solution (LAPRISS) is reported. LAPRISS is comprised of a next generation of high brilliance direct diode laser (DDL), a novel laser scanning head directly mounted on robot manipulator and a light load robot. The motion of robot manipulator, laser oscillation including its output power and irradiated laser pattern on work piece are fully controlled by the robot controller. The optics in the laser scanning head is specially designed to form any shapes of irradiated laser pattern on work piece, for example a circle, a spiral, a C-shape, a line or etc. With a circle or a line shape of weld bead, LAPRISS could replace conventional resistance spot welding (RSW) or arc welding (AW) both of which are widely used in automotive manufacturing industry. A laser welding (LW) navigation function is built in LAPRISS for helping operators select welding conditions automatically, which makes LAPRISS more competitive as a next generation of remote laser welding (RLW) system.