Quick manufacture method and device for metal part under action of magnetic field.

Abstract

The invention relates to a quick manufacture method and device for a metal part by a high-energy beam under the action of magnetic field. In the process that the high-energy beam and metal powder act, the metal powder is molten; the electromagnetic force action is applied to the outer part of a molten pool to change the stressed situation of the molten pool; the solidification behavior of the metal molten pool is subjected to directional control; the inner tissue of a metal manufacture part is refined; and the performance of the metal manufacture part is improved. The device comprises a first electrode, a second electrode and a solenoid coil, wherein the first electrode and the second electrode are installed on a workbench; and when the solenoid coil works, the electromagnetic force can be still kept to be enough to act on the molten pool generated by high-energy beam radiation metal powder. According to the invention, the solenoid coil is electrified by the electrodes to generate a magnetic field; and when the high-energy beam acts on the metal powder, the stressed situation of the metal molten pool generated by the metal powder is affected by the electromagnetic force, the magnitude and the direction of the electromagnetic acting force are controlled via the change of the current and the voltage so as to control the stressed behavior of the metal molten pool.

Description

technical field [0001] The technology of the invention belongs to the field of manufacturing, and in particular relates to a method and device for direct and rapid manufacturing of metal parts under the action of a magnetic field. The invention uses magnetic force to change the force and metallurgical behavior of the molten pool in the process of high-energy beam melting metal powder, and then regulates the internal microstructure of the formed metal parts, and finally achieves the purpose of optimizing the macroscopic performance of the metal parts. Background technique [0002] High energy beams mainly include laser beams, electron beams and ion beams. High-energy beam melting metal powder manufacturing technology is an advanced manufacturing technology developed in recent years that can realize rapid manufacturing of nearly fully dense metal parts. Compared with traditional rapid prototyping technology, this technology not only has the advantages of no need for special t...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of uneven material composition, obvious grain orientation, and easy to produce pores and cracks in the manufacturing process of the metal powder that are troubled by the rapid melting of the background technology, the present invention provides a rapid manufacturing method for metal parts under the action of a magnetic field. Method and device, in order to minimize the occurrence of defects and improve the performance of parts

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