A laser powder filling device and powder filling method for laser welding seam enhancement

Abstract

The invention discloses a laser powder filling device and a powder filling method for strengthening laser welding seams. The powder feeding pipeline in the arc track and the laser head connected to the fixed table; wherein, the powder feeding pipeline includes an inner pipeline and an outer pipeline that are slidably connected in a sheathing manner, and the relative sliding of the inner pipeline and the outer pipeline can change The vertical distance between the powder outlet of the powder delivery pipeline and the position to be welded. The powder delivery pipeline can move and rotate along the arc track to change the powder outlet angle of the powder outlet. It can realize the precise control of the powder feeding amount, powder feeding position and powder feeding angle, and solve the current technical problems that the relative position between the nozzle and the beam cannot be adjusted precisely, the processing angle is relatively single, and the process window is narrow.

Description

technical field [0001] The invention belongs to the technical field of laser welding, and more particularly, relates to a laser powder filling device and a powder filling method for laser welding seam enhancement. Background technique [0002] Laser and laser processing is a rapidly developing high-tech, and has become one of the key technologies for developing emerging industries and transforming traditional manufacturing industries. Laser additive manufacturing technologies such as laser powder filling and welding have developed rapidly in the field of laser processing and are increasingly emerging, and are widely used in automotive, aviation, navigation and other fields. At present, in the laser integrated molding technology such as laser powder filling welding, the powder supply usually adopts the synchronous powder feeding method. The synchronous powder feeding method is to feed the material directly into the laser beam through a special powder feeding system, so that ...

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Problems solved by technology

[0003] Aiming at the above defects or improvement needs of the prior art, the present invention provides a laser powder filling device and a powder filling method for laser welding seam enhancement, the purpose of which is to set at least two powder feeding pipelines and change the powder feeding pipeline The vertical distance between the powder outlet and the position to be welded, and change the powder outlet angle, so as to solve the problem that the relative position between the nozzle and the beam cannot be adjusted accurately, the processing angle is relatively single, and the process window is narrow technical problem

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