Side shaft powder feeding apparatus based on laser powder filling welding and powder feeding method

Abstract

The invention relates to a paraxonic powder-feeding device based on the laser powder filling weld and relative power-feeding method, belonging to the laser material manufacture technique. The inventive paraxonic powder-feeding device comprises sequentially connected three parts as upper body, intermediate body and lower body; wherein, the upper body mainly comprises a chamber (1), a chamber cover (8) and a gas curtain device (7); the intermediate body comprises a pair of gears formed by long-armed angle gear (5) and short-armed angle gear (6) and a motor (4); the lower body comprises a angular displacement regulator and a powder-feeding muzzle (14). When using said invention to process the laser powder filling weld, the powder-feeding muzzle moves along the operative track following the leaded light arm of laser while rotates around the laser beam and the rotating angular speed keeps synchronization of the angular change of the movement of said leaded light arm along operative track. The inventive powder-feeding device and method can effectively and easily process the paraxonic powder-feeding laser powder filling weld on the round and arc track of machined surface.

Description

technical field [0001] The invention relates to a side-axis powder feeding device and a powder feeding method based on laser powder filling welding, belonging to the technical field of laser material processing. Background technique [0002] Laser powder filling welding takes advantage of the advantages of powder filling materials and breaks through some limitations of filling welding wires such as top wire and high precision requirements for wire feeding mechanisms. It has become a new development direction of laser welding technology. It uses a laser as a heat source, and the laser beam is focused on the seam of the workpiece surface through a light guide system to form a welding pool. At the same time, the powder that has been alloyed or mechanically mixed is injected into the laser pool through the powder feeding nozzle, and the powder material It melts and mixes with the base material, and forms a weld after cooling, connecting two separated workpieces into a whole. ...

AI Technical Summary

Problems solved by technology

In this way, the lack of unidirectionality of the current side-axis powder feeding method can be overcome, and the problem that the side-axis powder feeding laser powder filling welding cannot be welded to circular, square or other curved tracks can be greatly expanded. Fields of application of filler welding

However, in the field of laser material processing technology, there are no related technologies and devices

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