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<p>Medical titanium alloys exhibit unique properties such as low thermal conductivity and minimal deformation coefficient, which often result in significant challenges during machining, including high cutting forces, elevated cutting temperatures, and severe tool wear. Continuous optimization of machining techniques is crucial for enhancing the precision, durability, and biocompatibility of medical devices. A comprehensive and in-depth review of the multi-generational evolution of medical titanium alloys, along with advancements in both additive and traditional manufacturing technologies, holds significant importance for the future development of these materials. This paper initially outlines the developmental trajectory of medical titanium alloys, summarizes the limitations of each generation of alloys, and proposes future research directions. Subsequently, it delves into the current state of powder bed fusion, directed energy deposition, and traditional machining technologies. Finally, it synthesizes issues related to surface quality and mechanical properties during milling processes, along with corresponding improvement methods. It is anticipated that this review will provide valuable insights for further innovation and optimization of subtractive manufacturing technologies for medical titanium alloys.</p>

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A review on powder bed fusion and directed energy deposition fabrication, and traditional machining methods of medical titanium alloys

  • 期刊论文

  • 发表日期：

    2025年9月17日

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  • Yang Chen,
  • Hongwan Jiang,
  • Chuchun Tian,
  • Sen Yuan,
  • Zhongwei Ren,
  • Jing Deng

摘要

Medical titanium alloys exhibit unique properties such as low thermal conductivity and minimal deformation coefficient, which often result in significant challenges during machining, including high cutting forces, elevated cutting temperatures, and severe tool wear. Continuous optimization of machining techniques is crucial for enhancing the precision, durability, and biocompatibility of medical devices. A comprehensive and in-depth review of the multi-generational evolution of medical titanium alloys, along with advancements in both additive and traditional manufacturing technologies, holds significant importance for the future development of these materials. This paper initially outlines the developmental trajectory of medical titanium alloys, summarizes the limitations of each generation of alloys, and proposes future research directions. Subsequently, it delves into the current state of powder bed fusion, directed energy deposition, and traditional machining technologies. Finally, it synthesizes issues related to surface quality and mechanical properties during milling processes, along with corresponding improvement methods. It is anticipated that this review will provide valuable insights for further innovation and optimization of subtractive manufacturing technologies for medical titanium alloys.