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<p>Metal matrix composites (MMC) are widely used in in modern industry due to their excellent mechanical properties and at the same time mechanical properties, while at the same time, due to their internal high-hardness particles, precision machining is a major challenge, and effective machining of composites is proposed; laser-assisted machining (LAM), and in the laser-assisted cutting, the temperature, as an important parameter in the cutting process, the accurate prediction of the becomes an urgent problem. Excessive temperature will produce thermal cracks, excessive thermal stress, instantaneous oxidation, etc., and the use of pulsed lasers increases the difficulty of temperature control. In order to changes in the temperature field in the LAM process, we use the principle of temperature superposition to principle of temperature superposition to predict the temperature of pulsed laser irradiation and establish a two-dimensional finite element model, taking into account the laser irradiation, cohesive unit heat transfer, particle crushing warming, as well as the influence of thermal radiation and thermal convection, combined with experiments to show that the model and the simulation can accurately predict the warming process and the change of the temperature, and the errors were 9.83, 11.24, 10.86, and 8.82%, respectively.</p>

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Temperature Field Prediction and Analysis of Pulsed Laser-Assisted Cutting of Particle-Reinforced Aluminum Matrix Composites

  • 期刊论文

  • 发表日期：

    2025年3月24日

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  • Jieqiong Lin,
  • Chenyang Xia,
  • Qiang Gao,
  • Mingming Lu

摘要

Metal matrix composites (MMC) are widely used in in modern industry due to their excellent mechanical properties and at the same time mechanical properties, while at the same time, due to their internal high-hardness particles, precision machining is a major challenge, and effective machining of composites is proposed; laser-assisted machining (LAM), and in the laser-assisted cutting, the temperature, as an important parameter in the cutting process, the accurate prediction of the becomes an urgent problem. Excessive temperature will produce thermal cracks, excessive thermal stress, instantaneous oxidation, etc., and the use of pulsed lasers increases the difficulty of temperature control. In order to changes in the temperature field in the LAM process, we use the principle of temperature superposition to principle of temperature superposition to predict the temperature of pulsed laser irradiation and establish a two-dimensional finite element model, taking into account the laser irradiation, cohesive unit heat transfer, particle crushing warming, as well as the influence of thermal radiation and thermal convection, combined with experiments to show that the model and the simulation can accurately predict the warming process and the change of the temperature, and the errors were 9.83, 11.24, 10.86, and 8.82%, respectively.