材料工程2025，Vol.53Issue(5)：93-102,10.DOI:10.11868/j.issn.1001-4381.2024.000870
摆弧工艺对丝-弧增材制造Al5356直壁构件成形质量和组织性能的影响
Effect of swing arc process on forming quality,microstructure and mechanical properties of Al5356 straight-wall components manufactured by wire-arc additive manufacturing
摘要
Abstract
During the wire-arc additive manufacturing process,Al5356 straight-wall components are fabricated by imparting lateral swings of varying frequencies and amplitudes to the welding gun.The impact of these swinging arcs on the forming quality,pore distribution,microstructure,and mechanical properties of the components is evaluated through surface waviness calculations,microstructural analysis,and mechanical tensile tests.The results show that incorporating the arc swing technique in the manufacturing process significantly enhances the forming accuracy,compactness,microstructural uniformity,and mechanical properties of the straight-wall samples.Within the experimental parameters,applying an arc swing reduces the surface waviness of Al5356 straight-wall samples by 60%compared to those produced without an arc swing.Additionally,the porosity and maximum pore diameter are decreased from over 0.65%and 33 µm to below 0.20%and 10 µm,respectively.The average tensile strength in both the X-direction(deposition direction)and Z-direction(build direction)increases by approximately 13%and 15%,respectively,while the average elongation improves by about 27%and 25%,respectively.Notably,the frequency of the arc swing has a more pronounced effect than the amplitude in enhancing surface quality,pore dispersion,and pore diameter reduction in the deposited components.High-frequency arc oscillation exerts a potent stirring effect on the melt pool,leading to a more uniform temperature distribution across the transverse direction of the deposited weld path.The observed enhancement in mechanical properties is primarily attributed to the reduction of pore defects and the homogenization of the microstructure.Therefore,the proper application of the arc swing technique in wire-arc additive manufacturing holds significant promise for improving the forming quality and mechanical properties of components.关键词
丝-弧增材制造/铝合金/孔隙率/成形质量/显微组织/力学性能Key words
wire-arc additive manufacturing/aluminium alloy/porosity/forming quality/microstructure/mechanical property分类
金属材料引用本文复制引用
王晋,孙高明,杨全涛,史秋月,孙建新,张元好..摆弧工艺对丝-弧增材制造Al5356直壁构件成形质量和组织性能的影响[J].材料工程,2025,53(5):93-102,10.基金项目
湖北省自然科学基金(2023AFB1033) （2023AFB1033）
湖北汽车工业学院博士科研启动基金(BK202310) （BK202310）
新能源汽车关键材料湖北省重点实验室(筹)2021年度开放基金(QCCLSZK2021B04) （筹）
