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Laser cutting method and equipment

A laser cutting and laser technology, used in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of inability to process rare earth permanent magnet alloy materials and low efficiency, and achieve the effect of changing magnetic properties and ensuring processing accuracy.

Inactive Publication Date: 2017-03-08
北京麦戈龙科技有限公司 +1
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Problems solved by technology

At present, there are only two processing technologies for rare earth permanent magnet alloy materials, namely electric discharge machining and diamond grinding. Many limitations such as device processing shape cannot comprehensively process rare earth permanent magnet alloy materials

Method used

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  • Laser cutting method and equipment

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0028] In the process of realizing the present invention, the inventors have found that other metal materials can be cut by laser cutting technology, and the cutting efficiency is much higher than that of traditional grinding or mechanical cutting methods. The existing laser cutting method uses the energy of the laser to The metal at the cutting part is melted, so as to achieve the purpose of cutting. But for the rare earth permanent magnet alloy, the cutting part is in a molten state, and th...

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Abstract

The invention discloses a laser cutting method and equipment. The laser cutting method is used for cutting a rare earth permanent magnetic alloy material. The method comprises: under the condition of cutting the rare earth permanent magnetic alloy material by laser, carrying out gas protection and cooling treatment on the rare earth permanent magnetic alloy material through a gas cooling and protection device. By protecting a machined device through the gas cooling and protection device, conditions that a cutting part is at a fused state and an alloy of a critical region is influenced so that a metallographic structure of the alloy is changed are avoided, so that a magnetic performance of the alloy is changed, and the machining accuracy of micro-devices can be guaranteed.

Description

technical field [0001] The invention relates to the field of laser cutting, in particular to a laser cutting method and equipment. Background technique [0002] Rare earth permanent magnet alloys include samarium cobalt permanent magnet alloy (SmCo5 type and Sm2Co17 type respectively) and neodymium iron boron permanent magnet alloy (NdFeB). Rare earth permanent magnet alloys are commonly used in instruments, sensors, micro-motors and speakers. At present, there are only two processing technologies for rare earth permanent magnet alloy materials, namely electric discharge machining and diamond grinding. Many limitations such as device processing shape cannot fully process rare earth permanent magnet alloy materials. [0003] Aiming at the problems in the related technologies, no effective solution has been proposed yet. Contents of the invention [0004] Aiming at the problems in related technologies, the present invention proposes a laser cutting method for cutting rare...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/38B23K26/70B23K101/18
CPCB23K26/38
Inventor 李文科
Owner 北京麦戈龙科技有限公司
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