(1. 中南大學(xué) 材料科學(xué)與工程學(xué)院，長(zhǎng)沙 410083；
2. 湖南省電子封裝與先進(jìn)功能材料重點(diǎn)實(shí)驗(yàn)室，長(zhǎng)沙 410083；
3. 中南大學(xué) 輕質(zhì)高強(qiáng)結(jié)構(gòu)材料國(guó)防科技重點(diǎn)實(shí)驗(yàn)室，長(zhǎng)沙410083)
摘 要: 鋁合金具有低密度、高強(qiáng)度和良好的耐蝕性等優(yōu)點(diǎn)，是選區(qū)激光熔化技術(shù)的重要研究與應(yīng)用方向之一。重點(diǎn)論述選區(qū)激光熔化技術(shù)的基本原理、優(yōu)缺點(diǎn)和選區(qū)激光熔化鋁合金的國(guó)內(nèi)外研究概況，介紹選區(qū)激光熔化Al-Si、Al-Mg、Al-Cu和Al-Zn-Mg等合金體系，討論粉末性能、工藝參數(shù)和熱處理工藝等選區(qū)激光熔化鋁合金的主要影響因素，分析選區(qū)激光熔化鋁合金的存在問題并進(jìn)行展望。
關(guān)鍵字: 增材制造；3D打印；選區(qū)激光熔化；鋁合金；激光
（1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;
2. Key Laboratory of Electronic Packaging and Advanced Functional Materials, Central South University, Changsha 410083, China;
3. National Key Laboratory of Science and Technology for National Defence on High-strength Structural Materials, Central South University, Changsha 410083, China）
Abstract:Aluminum alloy has the advantages of low density, high strength and good corrosion resistance, which is one of the important research directions of selective laser melting. The basic principles, advantages and disadvantages of selective laser melting were discussed. Research situation in selective laser melted Al alloy was surveyed, and Al-Si, Al-Mg, Al-Cu and Al-Zn-Mg alloys were introduced. Factors related to microstructure and physical properties such as powder properties, process parameters and heat treatment were discussed. Finally, the relevant problems and development tendency were also addressed.
Key words: additive manufacturing; 3D printing; selective laser melting; aluminum alloy; laser
