SLM增材制造用高性能铝合金材料研究进展及展望

    Research Progress and Prospect of High-performance Aluminum Alloys for SLM Additive Manufacturing

    • 摘要: 近年来,SLM增材制造技术为高性能复杂铝合金构件制造提供了一条全新途径。SLM增材制造过程的快速凝固特性为新型专用铝合金开发创造了重要条件,但其外延生长和高热应力特点使成熟牌号高性能铝合金材料存在严重开裂问题。基于SLM工艺适配的专用合金开发、成熟牌号高性能合金的改性合金开发两条技术路线出发,重点梳理了现阶段在SLM增材制造用高强韧、高强耐热、高导热中高强铝合金材料方面的研究进展。在此基础上,展望了未来加速SLM增材制造用高性能铝合金开发、拓展其工程应用范围的技术途径。

       

      Abstract: In recent years, SLM additive manufacturing has provided a brand-new approach for the production of high-performance and complex aluminum alloy components. The rapid solidification conditions of SLM additive manufacturing process provide important conditions for the development of novel aluminum alloys. Meanwhile, the epitaxial growth and the high thermal stress during the SLM additive manufacturing process lead to severe cracking problems in mature high-performance aluminum alloy grades. From the perspectives of the development of dedicated alloys tailored to the characteristics of SLM additive manufacturing technology and the development of modified alloys based on mature high-performance alloy grades, this review summarized the current research and research progress of high-strength and high-toughness, high-strength and heat-resistant, as well as high-thermal-conductivity and medium-high-strength aluminum alloys for SLM additive manufacturing. On this basis, the technical approaches to accelerate the development and further expand its engineering application scope in the future were prospected.

       

    /

    返回文章
    返回