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Circular ring neodymium iron boron processing method

A processing method and NdFeB technology are applied in the processing field of circular NdFeB, which can solve the problems of low processing precision, cumbersome processing procedures, environmental pollution, etc., meet the requirements of simple operation, ensure processing dimensional accuracy, and realize feasibility sexual effect

Inactive Publication Date: 2019-11-22
ZHONGBEI UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Aiming at the problems of cumbersome processing procedure, low processing precision and environmental pollution of the existing NdFeB special-shaped products, the present invention provides a processing method of circular NdFeB

Method used

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  • Circular ring neodymium iron boron processing method
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  • Circular ring neodymium iron boron processing method

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Embodiment

[0030] Such as figure 2 Shown, a kind of processing method of circular neodymium iron boron, comprises the following steps:

[0031] The first step is to fix the sintered NdFeB cylindrical blank so that the cutting surface is perpendicular to the horizontal plane, and use a wire electric discharge machine to cut the cylindrical blank into discs with a diameter of 50mm and a thickness of 2-5mm;

[0032] The second step is to degrease, clean and dry the disc in the first step;

[0033] The third step is to fix the wafer dried in the second step on the cutting table with a clamp;

[0034] The fourth step is to use the pulsed laser emitted by the laser cutting machine to radiate to the surface of the wafer material to achieve cutting. During the cutting process, nitrogen is selected as the auxiliary gas.

[0035] Process sintered NdFeB blanks into discs, such as figure 1 As shown, because of its own crystal structure, it forms inherent characteristics such as hard and brittle,...

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Abstract

The invention relates to a circular ring neodymium iron boron processing method, and belongs to the technical field of rare earth permanent magnet processing. The circular ring neodymium iron boron processing method can solve the problems that an existing neodymium iron boron special-shaped product is complex in processing procedure and not high in processing precision and has environmental pollution. The processing method comprises the following steps of 1) fixing a sintering neodymium iron boron cylindrical blank material, and adopting an electric spark wire cutting machine to cut the blankmaterial into round sheets coincident in thickness; 2) conducting degreasing, washing and drying treatment on the round sheets; 3) using a laser cutting machine to conduct internal round cutting on the clamped round sheets, wherein auxiliary gas used throughout the cutting process is nitrogen; and 4) magnetizing processed materials. The circular ring neodymium iron boron processing method is easyto operate, one-time processing and forming of a neodymium-iron-boron circular ring can be realized, the cutting accuracy requirements are ensured, the production efficiency can be improved, and modern development needs are met.

Description

technical field [0001] The invention belongs to the technical field of rare earth permanent magnet processing, and in particular relates to a processing method of circular neodymium iron boron. Background technique [0002] NdFeB permanent magnet material is the third-generation rare earth permanent magnet material developed and successfully used in the 1980s. When processing NdFeB special-shaped products, according to the traditional post-processing technology, the rough material needs to be drilled by a grinder first. A series of processing procedures such as hole, slicing, grinding, arc grinding, cleaning, chamfering and electroplating are relatively cumbersome, not only difficult to ensure size requirements, low processing accuracy and long time-consuming, but also lead to a series of products. quality problem. The main reason is that the processing method is still the traditional wire-cut EDM, and some auxiliary materials traditionally used in the process will also bri...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 刘国东祝锡晶任宁仝志宏马传杰
Owner ZHONGBEI UNIV
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