
Wire-friction stir additive remanufacturing of high strength aluminum alloys
Jingyu YUAN, Xiangchen MENG, Jialin CHEN, Yuming XIE, Xinmeng ZHANG, Yongxian HUANG
Wire-friction stir additive remanufacturing of high strength aluminum alloys
A wire-based friction stir additive remanufacturing (W-FSAR) method is proposed to address large cracks and material loss in aluminum alloy components during production and service. The W-FSAR tools consist of a wire feeding device, a stationary sleeve, and a screw-structured stirring head. This method effectively fills and repairs 10 mm-width and 2 mm-depth groove defects in aluminum alloy components. The results indicate the repaired sample has high repair efficiency, smooth morphology, homogeneous microstructure, and excellent mechanical properties. The dynamic recovery and recrystallization processes refine the grain size to 1.59 μm. The ultimate tensile strength and elongation of the repaired samples are (410±8) MPa and (11.9±0.9)%, respectively, which increase by 26% and 159% compared to the worn-out specimens. There are numerous dimples on the fracture surface, exhibiting typical ductile fracture characteristics.
friction stir repairing / solid state remanufacturing / 7A52 aluminum alloy / microstructure / mechanical property
[1] |
徐滨士. 绿色再制造工程———21世纪的重要产业[J]. 航空制造技术,2002(6):26-28.
|
[2] |
王海斗,张文宇,宋巍. 再制造二十年足迹及发展趋势[J].机械工程学报,2023,59(20):80-95.
|
[3] |
|
[4] |
|
[5] |
|
[6] |
|
[7] |
|
[8] |
刘志浩,王文,韩鹏,等. 搅拌摩擦加工改性冷喷涂6061铝合金涂层的断裂行为[J]. 塑性工程学报,2023,30(3):190-196.
|
[9] |
徐荣,王文军,祝弘滨,等. 激光定向能量沉积Al-Mg-Sc-Zr修复5083-H112铝合金的组织和性能[J]. 材料工程,2024,52(2):40-49.
|
[10] |
刘海滨,徐添乐,谢瑞山. 航空航天领域轻合金缺陷修复研究现状及发展趋势[J]. 航天制造技术,2023,66(2):1-9.
|
[11] |
陈刚,武凯,孙宇,等. 搅拌摩擦沉积增材技术研究进展[J].材料工程,2024,51(1):52-63.
|
[12] |
|
[13] |
张欣盟,何广忠,王贝贝,等. 6082- T6 铝合金填料搅拌摩擦焊工艺[J]. 电焊机,2020,50(12):54-58.
|
[14] |
|
[15] |
|
[16] |
|
[17] |
|
[18] |
|
[19] |
|
[20] |
|
[21] |
|
[22] |
|
[23] |
王东,韩世伟,张世全,等. 5B06焊丝在7A52装甲铝合金上的焊接性研究[J]. 兵器材料科学与工程,2016,39(6):17-20.
|
[24] |
井瑞,谭茂举,武传松,等. 2A12/AZ31B异质合金超声振动辅助搅拌摩擦焊核区晶粒组织[J]. 材料工程,2023,51(12): 75-83.
|
/
〈 |
|
〉 |