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<p>This study investigates the high-speed cutting behavior of 2024 aluminum matrix composites reinforced with FeCoCrNiAlX high-entropy alloy particles. A three-dimensional cutting simulation model was established to evaluate the effects of cutting path, cutting speed, particle diameter, and aluminum content on the cutting response. The results indicate that the cutting force reaches its maximum at a cutting depth of 54&#xa0;μm and subsequently decreases by 21% at 75&#xa0;μm. As the cutting speed increases from 800 to 1000&#xa0;mm/s, the cutting force rises by 105%. Particle diameter also significantly influences the cutting force: compared with that at 45&#xa0;μm, the cutting force at 55&#xa0;μm increases by 1.5 times, followed by a 6% decrease at 60&#xa0;μm. Stress analysis further reveals that the stress sustained by Al<sub>1</sub> particles is approximately 1.1 times that of Al<sub>0</sub> particles. Experimental validation shows that the deviation between the simulated and measured cutting forces remains within 5.38%, confirming the reliability of the proposed model. These findings elucidate the deformation and failure mechanisms of HEA particle-reinforced composites during high-speed cutting and provide a theoretical basis for tool design and process optimization.</p>

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Study on High-Speed Cutting Mechanism of FeCoCrNiAlX High-Entropy Alloy Particle-Reinforced 2024 Aluminum Matrix Composites

  • 期刊论文

  • 发表日期：

    2026年6月18日

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  • Ping Zhang,
  • Shuai Ge,
  • Shunxiang Wang,
  • Tengfei Zhang

摘要

This study investigates the high-speed cutting behavior of 2024 aluminum matrix composites reinforced with FeCoCrNiAlX high-entropy alloy particles. A three-dimensional cutting simulation model was established to evaluate the effects of cutting path, cutting speed, particle diameter, and aluminum content on the cutting response. The results indicate that the cutting force reaches its maximum at a cutting depth of 54 μm and subsequently decreases by 21% at 75 μm. As the cutting speed increases from 800 to 1000 mm/s, the cutting force rises by 105%. Particle diameter also significantly influences the cutting force: compared with that at 45 μm, the cutting force at 55 μm increases by 1.5 times, followed by a 6% decrease at 60 μm. Stress analysis further reveals that the stress sustained by Al1 particles is approximately 1.1 times that of Al0 particles. Experimental validation shows that the deviation between the simulated and measured cutting forces remains within 5.38%, confirming the reliability of the proposed model. These findings elucidate the deformation and failure mechanisms of HEA particle-reinforced composites during high-speed cutting and provide a theoretical basis for tool design and process optimization.