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Compared to arc additive manufacturing, Oscillating Laser Wire Additive Manufacturing (O-LWAM) technology provides lower raw material costs, higher material utilization, and faster deposition. However, rapid melting, solidification, and cooling can cause defects like warping, cracks, pores, poor fusion, and coarse columnar grains. By employing different laser beam oscillation methods, O-LWAM enhances energy distribution and molten metal flow to reduce defects and improve material performance. This paper establishes numerical models to visualize and analyze the effects of oscillating lasers on energy distribution and molten pool evolution, offering a reference for process parameter optimization for performance enhancement in additive manufacturing.

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Numerical Research on Molten Pool Dynamics of Oscillating Laser Wire Additive Manufacturing

  • 会议论文

  • 发表日期：

    2025年

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  • Bowen Zheng,
  • Junfeng Qi,
  • Jianchao Zhang,
  • Jingyang Li,
  • Zhanjiao Gao

摘要

Compared to arc additive manufacturing, Oscillating Laser Wire Additive Manufacturing (O-LWAM) technology provides lower raw material costs, higher material utilization, and faster deposition. However, rapid melting, solidification, and cooling can cause defects like warping, cracks, pores, poor fusion, and coarse columnar grains. By employing different laser beam oscillation methods, O-LWAM enhances energy distribution and molten metal flow to reduce defects and improve material performance. This paper establishes numerical models to visualize and analyze the effects of oscillating lasers on energy distribution and molten pool evolution, offering a reference for process parameter optimization for performance enhancement in additive manufacturing.