二系铝合金电弧增材制造技术研究现状

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Abstract：Wire-arc Additive Manufacturing （WAAM） technology has received more and more atention in contemporary manufacturing due to itsadvantages in the economical production of large metal components with high deposition rates. High-strength aluminum-copper alloys are widely used in the aerospace， military，and automotive industries due to their high specific strength and excellent processing capabilities.WAAM provides an effective method for the production of large，high-strength aluminum-copper alloy components，and the field is rapidly evolving. In this paper，the research progress of WAAM high-strength aluminum-copper aloy in terms of microstructure and properties，defects and post-treatment is reviewed.The results are positive in terms of the microstructure and mechanical properties of WAAM’s high-strength aluminum-copper aloys.Finally，on the basis of previous research， this paper summarizes the development prospects of WAAM high-strength aluminum-copper alloys.

Keywords： wire-arc additive manufacturing; 2219 aluminum alloy; microstructure and properties; flaw; postprocessing

1序言

金属材料制造领域是现代工业社会的重要组成部分，也是国家创造力、竞争力和综合国力的体现[1，2]。（剩余19889字）