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Laser metallic additive manufacturing technologies by thermal–mechanical interaction uses laser shock waves to induce plastic deformation to improve the internal stresses, metallurgical defects, and non-uniform microstructures during melting/solidification, achieving efficient and high-quality forming of components. Based on the thermal effects of LPBF and the mechanical effects of LSP, this chapter mainly describes the multiphysics interactions and internal stresses of LPBF Ti6Al4V alloy, and the CRS, microstructural evolution, and micro-strengthening mechanisms induced by LSP.

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Theoretical Basis of Laser Metallic Additive Manufacturing Technologies by Thermal–Mechanical Interaction

  • 章节

  • 发表日期：

    2025年

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  • Jinzhong Lu,
  • Haifei Lu,
  • Kaiyu Luo

摘要

Laser metallic additive manufacturing technologies by thermal–mechanical interaction uses laser shock waves to induce plastic deformation to improve the internal stresses, metallurgical defects, and non-uniform microstructures during melting/solidification, achieving efficient and high-quality forming of components. Based on the thermal effects of LPBF and the mechanical effects of LSP, this chapter mainly describes the multiphysics interactions and internal stresses of LPBF Ti6Al4V alloy, and the CRS, microstructural evolution, and micro-strengthening mechanisms induced by LSP.