Journal of Materials Engineering

Influence of geometric parameters on microstructure and mechanical properties of friction pull plug welding joints for 2219 aluminum alloy

SHAO Zhen, CUI Lei, WANG Dongpo, CHEN Yongliang, HU Zhenggen, WANG Feifan

Journal of Materials Engineering, 2022, 50(1): 25-32. DOI: 10.11868/j.issn.1001-4381.2021.000657

Cu	Mn	Ti	Zr	V	Zn	Mg	Fe	Si	Al
5.8-6.8	0.2-0.4	0.02-0.10	0.10-0.24	0.05-0.15	＜0.1	0.02	＜0.3	＜0.2	Bal

Table 1 Chemical compositions of 2219 aluminum alloy(mass fraction/%)

Other figure/table from this article

Table 2 Welding process parameters of FPPW
Fig.1 Schematic diagram(a) of FPPW and assembly of joints(b)
Fig.2 Geometry parameters of FPPW joints (a)plug; (b)1^# hole; (c)2^# hole; (d)1^#forming ring; (e)2^#forming ring
Table 3 Matching relations between hole and forming ring
Fig.3 Dimension diagram of tensile specimen
Fig.4 Relationship of flow stress and strain at different temperatures (a)260 ℃; (b)371 ℃; (c)482 ℃
Table 4 Thermophysical parameters of related materials
Fig.5 Macro morphologies of cross section in different joints (a)joint Ⅰ; (b)joint Ⅱ; (c)joint Ⅲ; (d)joint Ⅳ
Fig.6 Stress field distribution of joint Ⅲ(a) and joint Ⅳ(b)
Fig.7 Interface bonding morphologies of joints (a)joint Ⅰ; (b)joint Ⅱ; (c)joint Ⅲ; (d)joint Ⅳ
Fig.8 SEM images of different zones in joint Ⅳ (a)SEM image; (b)BM; (c)HAZ; (d)TMAZ; (e)RZ; (f)BI; (g)PM
Fig.9 Hardness distribution of cross section in joint Ⅳ
Fig.10 Tensile strength and elongation of BM and different joints
Fig.11 Tensile fracture morphologies of FPPW joints (a)joint Ⅰ; (b)joint Ⅱ; (c)joint Ⅲ; (d)joint Ⅳ