选区激光熔化成形铝合金研究进展
Research progress in selective laser melting forming of aluminum alloy
张康 1王幸福 2梁驹华 2韩福生2
作者信息
- 1. 中国科学院合肥物质科学研究院固体物理研究所材料物理重点实验室,安徽 合肥 230031;中国科学技术大学合肥物质研究院,安徽 合肥 230026
- 2. 中国科学院合肥物质科学研究院固体物理研究所材料物理重点实验室,安徽 合肥 230031
- 折叠
摘要
铝合金因低密度、高比强、耐腐蚀性强等优势,己广泛应用于航空航天、汽车制造等领域.然而,随着高强铝合金复杂精密构件需求日益增加,传统制造工艺已不能满足要求.金属增材制造技术可解决复杂构件的成形难、成形后内部缺陷较多等问题,展现出重要应用前景,其中,选区激光熔化技术( Selective laser melting,SLM)常用于高精度金属构件的3D打印成形,能够实现复杂零件的一体化近净成形,其制造的铝合金试样具有内部缺陷少、力学性能优异、表面质量高等优势.概述了 SLM成形铝合金工艺特点与技术原理,存在的主要问题及控制缺陷的有效解决方法,重点关注了几种典型铝合金及其复合材料的SLM工艺研究进展,介绍了国内外最新研究动向,并对未来的发展趋势进行了展望.
Abstract
Aluminum alloys have been widely used in fields such as aerospace and automotive manufacturing due to their advantages of low density,high specific strength,and strong corrosion resistance. However,with the increasing demand for complex and precise components of high-strength aluminum alloys,traditional manufactur-ing processes can no longer meet the requirements. Metal additive manufacturing technology can solve the prob-lems of difficult forming of complex components and numerous internal defects after forming,showing signifi-cant application prospects. Among them,selective laser melting (SLM) technology is commonly used for 3D printing and forming of metal materials,which can achieve integrated near net forming of complex parts. The alu-minum alloy samples manufactured by SLM have advantages such as fewer internal defects,excellent mechanical properties,and high surface quality. This article outlines the characteristics and technical principles of SLM form-ing aluminum alloy process,the main problems and effective solutions to control defects. It focuses on the research progress of SLM technology for several typical aluminum alloys and their composite materials,introduc-es the latest research trends at home and abroad,looks forward to future development trends.
关键词
铝合金/选区激光熔化/缺陷/优化/力学性能Key words
aluminum alloy/selective laser melting/defect/optimize/mechanical property引用本文复制引用
基金项目
合肥市关键共性技术研发项目(2021GJ053)
内蒙古自治区科技计划资助项目(2022YFDZ0004)
中国科学院合肥物质科学研究院院长基金资助项目(YZJJKX202202)
出版年
2024
NETL
NSTL
万方数据