An electric-magnetic compound field cooperative laser cladding device with permanent magnet for magnetization

Abstract

An electro-magnetic composite field cooperative laser cladding device supplied by a permanent magnet, including a laser cladding part, a support part, an electric field part and a magnetic field part; the laser cladding part includes a laser and a powder feeder, and the support part includes a floor stand and a Along the base plate, both ends of the base plate can be rotated and positioned on the rotating device, and the rotating device can move up and down along the z-axis direction and be positioned on the floor stand; the far end of the first adjustment plate can be positioned on the base plate. Move and position in the direction of the y-axis, the proximal end of the first adjustment plate is vertically intersected with the proximal end of the second adjustment plate, and the second adjustment plate can be moved and positioned in the direction of the x-axis on the first adjustment plate, and the two ends of the substrate are respectively It is movable and positionable installed on the far end of the second adjustment plate; the electric field part includes a power supply connected by wires, a variable voltage regulator, and a switch; the magnetic field part includes a magnet box that can be moved and positioned along the bottom plate, and the magnetic field part also Includes cooling unit.

Description

technical field [0001] The invention relates to an electric-magnetic compound field cooperative laser cladding device for magnetization supplied by permanent magnets. Background technique [0002] Laser cladding technology refers to the addition of different solute elements or hard phases to add cladding materials on the surface of the substrate. After laser irradiation, the cladding materials and the surface of the substrate are simultaneously melted to form a molten pool. After rapid solidification Forms a surface coating that is low dilution and metallurgically bonded to the substrate. [0003] As the basic process of additive technology, laser cladding technology has been more and more used in industrial production. With the increasingly harsh conditions of use, the increasingly complex environment of use, and the continuous development of material science, people have put forward higher expectations and more requirements for laser cladding technology. [0004] The exi...

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Problems solved by technology

[0004] The existing laser cladding technology has also exposed the following problems: 1. The control of the laser cladding structure is generally achieved by adjusting the laser process parameters. It is difficult to control the shape, size, and crystal orientation of the grains in the cladding structure. Flexible control; 2. Under the irradiation of high-energy laser beams, the molten pool of the cladding layer is strongly stirred. It is easy to achieve uniform distribution of additional solute elements or hard phases in the single-layer laser cladding process, but it is difficult to achieve its gradient distribution

The above two devices simply provide a magnetic field, but do not realize the coupling of the electric field and the magnetic field, and their substrates are fixed, so they cannot realize multi-angle processing

[0006] The Chinese patent with the patent number CN103753028A discloses an electric field magnetic field coupling assisted laser drilling method and device. Although the device can realize synchronous coupling of the magnetic field and the magnetic field, the device is a cavity structure, which limits the size of the processing object , and the base of the device is fixed, and processing with variable angles cannot be realized; the Chinese patent No. CN104195541A discloses a method and device for electro-magnetic composite field synergistic laser cladding, which supplies magnetism for both sides, and simultaneously Coupling the electric field, but the gradient of the magnetic field cannot be flexibly adjusted, and it is difficult to realize the bias of the magnetic field direction, and the magnetic field device is fixed, so it cannot achieve multi-angle cladding

And in the process of applying the magnetic field, the device does not consider the cooling of the magnetic field, which can easily cause the permanent magnet to overheat and fail

During the application of the electric field, the device does not consider the insulation problem, so that the current into the substrate is shunted, resulting in insufficient electric field strength of the substrate

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