1results about How to "No plastic deformation" patented technology

This invention discloses a laser coaxial wire feeding additive repair device and method for the inner wall of pipe fittings, belonging to the field of laser additive manufacturing. The laser coaxial wire feeding additive repair device for the inner wall of pipe fittings includes a light guide arm, a four-beam laser head, and a wire feeding mechanism. The light guide arm is mounted on a robotic arm; one side of the light guide arm is connected to an optical cable, and the other side is tightly connected to the laser head via a bayonet. A wire feeding mechanism is fixed above the light guide arm, and multiple functional pipes, including cooling water pipes, protective gas pipes, and signal lines, are fixed below it. The laser head divides the laser beam introduced by the light guide arm into four beams distributed in a square shape through a lens group, and the four beams converge below the wire feeding head through a focusing lens. The focusing lens is installed in an anti-roll cage inside the laser head, and its up-and-down movement is controlled by a servo motor to change the laser focus position. A high-curvature wire feeding tube is placed inside the laser head, without interfering with the laser beam. The laser coaxial wire feeding additive repair device for the inner wall of pipe fittings described in this invention can realize laser coaxial wire feeding additive repair manufacturing of the inner wall of pipe fittings, improving the quality and efficiency of inner wall repair.