| 引用本文: | 陈源,姜梦,陈曦,马生翀,姜楠,雷正龙,陈彦宾.光丝同轴激光增材制造研究进展[J].材料科学与工艺,2022,30(2):16-27.DOI:10.11951/j.issn.1005-0299.20210207. |
| CHEN Yuan,JIANG Meng,CHEN Xi,MA Shengchong,JIANG Nan,LEI Zhenglong,CHEN Yanbin.Research progress of coaxial laser wire additive manufacturing[J].Materials Science and Technology,2022,30(2):16-27.DOI:10.11951/j.issn.1005-0299.20210207. |
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| 摘要: |
| 增材制造作为实现三维结构快速成形的技术,广泛用于航空航天、汽车交通等领域。当前,激光熔丝增材制造多依托于传统的激光焊接设备,采用旁轴送丝方式,在增材过程中,需调整激光头方向保证送丝和焊接头行进的相对方位,增大了复杂构件增材制造系统控制难度,损失了加工自由度。随着激光加工设备和技术的发展,近年来出现了一种可以解决上述问题的光丝同轴激光熔丝增材制造技术。由于此项技术刚刚起步,为了更好的理解光丝同轴激光熔丝增材制造技术的特性,本文从技术分类及原理、加工制造特性、成形精度控制以及增材件的组织性能等方面,论述了光丝同轴激光增材制造取得的研究进展,对比分析了光丝同轴技术与旁轴激光熔丝技术的差异性,阐述了用于光丝同轴技术的两种成形精度方法及特点,分析了光丝同轴增材件的组织与性能；最后,指出了光丝同轴技术未来的发展趋势。 |
| 关键词: 增材制造 激光熔丝 光丝同轴 工艺特性 成形质量 |
| DOI：10.11951/j.issn.1005-0299.20210207 |
| 分类号:TG456.7 |
| 文献标识码:A |
| 基金项目:国家科技重大专项(2019-VII-0004-0144). |
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| Research progress of coaxial laser wire additive manufacturing |
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CHEN Yuan, JIANG Meng, CHEN Xi, MA Shengchong, JIANG Nan, LEI Zhenglong, CHEN Yanbin
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(State Key Laboratory of Advanced Welding and Joining (Harbin Institute of Technology), Harbin 150001, China)
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| Abstract: |
| Additive manufacturing is widely applied in aerospace and automobile industries due to its ability to realize rapid prototyping of three-dimensional structures. The current wire-based laser additive manufacturing mostly relies on the traditional laser welding equipment with a lateral wire feeding method. However, in additive manufacturing with lateral wire feeding, it is necessary to adjust the direction of laser processing head to ensurea fixed relative position between wire and processing head, resulting in a significant increase in complexity of system control and obvious loss of processing freedom. With the development of laser processing equipment and technology, a novel process of coaxial laser wire additive manufacturing has emerged with the potential to solve the aforementioned problem. Since the process is just getting started, in order to better understand the characteristics of coaxial laser wire additive manufacturing, the research progress of coaxial laser wire additive manufacturing was summarized from the perspectives of implementation principle, processing characteristics, precision control, and microstructure and properties of additive manufactured components. The differences between laser wire additive manufacturing with coaxial wire and lateral wire feeding were analyzed. Two precision control methods for coaxial laser wire additive manufacturing and their characteristics were demonstrated. The microstructure and properties of components made by coaxial laser wire additive manufacturing were analyzed. In the end, the further research trend for coaxial laser wire additive manufacturing was put forward. |
| Key words: additive manufacturing wire-based laser metal deposition coaxial laser and wire process characteristics forming quality |
