课题编号

QN201
8003

课题名称

基于原位合金化的激光-间接电弧复合增材制造技术研究

起止时间

2019.01-2022.12

下达单位

国家自然科学基金委员会

是否验收

否

验收证书编号

课题主要简介：
    针对7000系铝合金增材制造易产生裂纹、成形效率低和丝材成型难的问题，本项目提出一种基于原位合金化的激光-间接电弧复合增材制造技术，即在异质双丝之间建立间接电弧使双丝熔化形成熔滴，激光束辅助熔滴过渡至熔池，丝粉同轴装置将第三丝和混合粉末送入熔池，同时利用激光调节对熔池的热输入，控制熔池凝固和熔积成形。

课题主要成果：

1. Dianlong Wang, Chaofeng Wu, Yingchao Suo, Liwei Wang*, Zhimin Liang. Effect of pulse frequency on arc behavior and droplet transfer of 2198 Al-Li alloy by ultrahigh-frequency pulse AC CMT welding. Journal of Materials Research and Technology, 2019, 8(5), 3950-3958.

2. Liwei Wang*,#, Yingchao Suo, Zhimin Liang, Dianlong Wang, Jun Xiao, Dejun Yan. Numerical simulation and experiments on the behavior and mechanism of laser-assisted droplet transfer. Optics and Lasers in Engineering, 2019, 122: 303-311.

3. Liwei Wang*,#, Yingchao Suo, Zhimin Liang, Dianlong Wang, Qian Wang. Effect of titanium powder on microstructure and mechanical properties of wire + arc additively manufactured Al-Mg alloy. Materials letters, 2019, 241: 231-234.

4. Liwei Wang, Yingchao Suo, Chaofeng Wu, Dianlong Wang*, Zhimin Liang. Effect of Pulse Frequency on Microstructure and Mechanical Properties of 2198 Al-Li Alloy Joints Obtained by Ultrahigh-Frequency Pulse AC CMT Welding. Materials, 2019, 12(1), 79.

5. 张静涛, 陆鹏炜, 梁志敏, 汪殿龙, 王立伟*. SUS316不锈钢丝电阻对焊接头成形和力学性能研究.热加工工艺, 2019, 48(03):73-75+79.

6. 王立伟，索英超，吴朝峰，汪殿龙，梁志敏，董思齐. 高频脉冲复合直流TIG对6N01铝合金焊接接头组织和硬度的影响. 沈阳大学学报, 2019, 31(03):173-177.