Electron beam processing system and processing method for multi-electron beam center wire feeding

Abstract

The invention discloses an electron beam processing system and processing method of multi-electron beam central wire feeding. The electron beam processing system comprises a plurality of electron beam guns and a wire feeding system, wherein the electron beam guns comprise electron beam generation systems, electron beam acceleration systems, electron beam accumulation systems and electron beam deflection systems; the wire feeding system comprises a wire feeding pipe and a wire feeding nozzle; the wire feeding nozzle is connected at the lower part of the wire feeding pipe; the wire feeding pipe and the wire feeding nozzle are arranged on a central axis of the structure; and the plurality of electron beam guns are in uniform lattice distribution along the circumference of the central axis. According to the electron beam processing system, the isotropy of electron beams on the surface of a workpiece can be guaranteed, the quality uniformity of the processed workpiece is improved, the processing process is continuous and unintermittent, the electron beam gun structures and a central wire feeding structure do not interfere with each other, and the processing system is applicable to electron beam processing fields of electron beam welding, electron beam cladding, electron beam metal 3D printing, and the like.

Description

technical field [0001] The invention belongs to the field of electron beam processing, can be used in processing processes such as electron beam welding, cladding and metal 3D printing, and particularly provides an electron beam processing system and processing method for multi-electron beam center wire feeding. Background technique [0002] The principle of electron beam processing: the electron beam and the metal material to be melted are transmitted to the processing position at the same time, so that the metal material is uniform, accurate, continuous and uninterrupted on the surface of the workpiece, and the transported metal material is melted and formed under the impact of the electron beam The molten pool completes the process of rapid melting and rapid solidification of materials, so as to realize the processing processes such as electron beam welding, cladding and metal 3D printing. Gravity powder feeding and lateral wire feeding are mainly used at home and abroad....

AI Technical Summary

Problems solved by technology

The lateral wire feeding system also has major disadvantages. During the processing, the electron beam 3 hits the surface of the workpiece 5 after being accelerated, focused, and deflected to form a molten pool 6. At the same time, the original wire feeding system that forms a certain angle with the electron beam 13 wire is sent into molten pool 6

Due to the inhomogeneity of the energy distribution of the electron beam spot, the energy obtained by the wire in the molten pool is different, which leads to the difference in the solidified shape, size, surface roughness, etc. of the molten pool, which greatly affects the processing quality of the workpiece.

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