Magnetic confinement device and method of CO2 laser beam bunching

A magnetic confinement and laser technology, applied to lasers, laser parts, phonon exciters, etc., can solve problems such as difficult cutting and poor quality

Inactive Publication Date: 2014-02-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

The current international advanced laser cutting accuracy can reach 0.05mm / m, and the highest focus spot diameter can reach 0.01mm. Due to the difficulty of laser focus adjustment, there are problems of poor quality and difficult cutting in focus cutting of thick plates. The thickness of the cut plate Generally limited to about 3mm
Laser welding also has similar problems, limited by the size of the laser spot and the movement of the focus position of the spot, the thickness of the welded plate is generally about 2mm

Method used

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  • Magnetic confinement device and method of CO2 laser beam bunching

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Embodiment Construction

[0019] The high-energy CO of the present invention will be discussed below in conjunction with the accompanying drawings 2 A magnetic confinement method and device for laser beam focusing will be described.

[0020] Such as figure 1 As shown, the CO of the present invention 2 Magnetic confinement methods and devices for laser beamforming include:

[0021] The four-dimensional motion platform 101, on which the laser is installed, realizes the control and adjustment of the position and posture of the laser, and ensures that the laser beam passes through the center of the magnetic cavity;

[0022] CO 2 Laser 102, emitting CO 2 Devices for high-power lasers;

[0023] Precision rail 103, adjust mutually exclusive magnetic confinement body and CO 2 The position between the lasers, choose the most suitable distance for focusing the laser beam;

[0024] Bearing bracket 104 supports the bearing and is connected to the precision guide rail at the same time to ensure that the bear...

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Abstract

The invention discloses a magnetic confinement device and method of CO2 laser beam bunching, and relates to the technical field of laser measurement. The device comprises a four-dimensional motion platform (101), a magnetic confinement device body and a facula dimension sensor (109) in sequence, the four-dimensional motion platform (101) is used for containing a CO2 laser (102), the magnetic confinement device body is used for laser beam bunching, and the facula dimension sensor (109) is used for detecting laser beam bunching performance. The magnetic confinement device body mainly comprises a mutual-exclusion magnetic confinement body (108) capable of rotating at high speed, the mutual-exclusion magnetic confinement body (108) is composed of a plurality of pairs of magnetic bodies with opposite polarities, a magnetic cavity (107) is formed in the middle of the mutual-exclusion magnetic confinement body (108), and laser beams emitted by the CO2 laser (102) can penetrate through the magnetic cavity (107). When a laser penetrates through the magnetic cavity, due to the fact that light ray deflection occurs to the laser in a mutual-exclusion magnetic field, the peripheral light rays of the laser beams deflect towards the center, and therefore the aim of improving the laser beam bunching performance is achieved.

Description

[0001] technical field [0002] The invention relates to the technical field of laser detection, more specifically, a method for improving CO 2 Laser beam focusing performance, thereby improving laser energy and processing accuracy of a CO 2 Magnetic confinement device and method for laser beam focusing. Background technique [0003] Under the action of a magnetic field, the optical properties of light will change. Previous studies include Zeeman effect, Faraday magneto-optic effect, Cotton-Mouton effect and Kerr magneto-optic effect. These effects all originate from the magnetization of matter, reflecting the connection between light and the magnetism of matter. [0004] Michael Faraday found that when linearly polarized light propagates in a medium, if a strong magnetic field is applied parallel to the propagation direction of the light, the light vibration direction will be deflected, and the deflection angle ψ is the product of the magnetic induction intensity B and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/223
Inventor 陆永华李亚威赵东标刘凯王扬威
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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