Recently, a major breakthrough has been achieved in the field of NdFeB magnet processing, as several leading companies in the industry have successfully improved laser processing technology through technological research, significantly enhancing the precision machining accuracy of NdFeB magnets and injecting strong impetus into the industry's development.
NdFeB magnets, renowned for their excellent magnetic properties, are widely used in numerous fields such as new energy vehicles, wind power generation, and industrial robots. However, their processing poses significant challenges, demanding extremely high precision. Traditional processing methods often struggle to meet requirements when dealing with complex shapes and high-precision demands. The improvement in laser processing technology has effectively addressed this dilemma.
The innovative laser cutting method jointly developed by Ningbo Coerste Magnetics Co., Ltd., its affiliated enterprises, and Beijing Zhongke Sanhuan High-Tech Co., Ltd., has achieved dual improvements in both precision and quality of NdFeB magnets by fine-tuning laser cutting parameters. In practical processing, this technology can control the processing accuracy of NdFeB magnets within a minimal range, significantly reducing the scrap rate while also substantially lowering production costs.
Meanwhile, significant progress has also been made in water-jet guided laser processing technology. This advanced technology, which combines lasers with water jets, exhibits unique advantages in NdFeB magnet processing. It achieves a processing accuracy of ±0.003mm, meeting the stringent requirements for magnet processing accuracy in high-end fields such as medical MRI probes and humanoid robot joint motors. During processing, water-jet guided laser cooling avoids thermal stress issues, increasing the yield rate of high-coercivity magnetic materials with a temperature resistance above 180℃ from 65% to 92%, ensuring a stable supply of magnetic materials for high-voltage platforms. Moreover, this technology offers distinct advantages in controlling coating thickness uniformity, with precision improved by five times compared to traditional sputtering processes, reaching ±0.002mm, providing crucial guarantees for the coating uniformity of magnets used in special environments such as offshore wind power.
Industry experts state that the improvement in laser processing technology will greatly promote the application expansion of NdFeB magnets in high-end fields. With the continuous maturation and promotion of this technology, it is expected that the market share of NdFeB magnets produced using improved laser processing technology will significantly increase in the coming years, further facilitating the upgrading and development of related industries.
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