J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (1): 128-134.DOI: 10.1016/j.jmst.2017.10.015
Special Issue: FSW-and-FSP-articles 2018
• Orginal Article • Previous Articles Next Articles
Gaoqiang Chenab, Qingxian Maa, Shuai Zhangab, Jianjun Wua, Gong Zhanga, Qingyu Shiab*()
Received:
2017-02-06
Revised:
2017-04-01
Accepted:
2017-04-03
Online:
2018-01-20
Published:
2018-02-09
Contact:
Shi Qingyu
Gaoqiang Chen, Qingxian Ma, Shuai Zhang, Jianjun Wu, Gong Zhang, Qingyu Shi. Computational fluid dynamics simulation of friction stir welding: A comparative study on different frictional boundary conditions[J]. J. Mater. Sci. Technol., 2018, 34(1): 128-134.
Number | Tool rotation rate (rpm) | Welding speed (mm/min) |
---|---|---|
1 | 500 | 40 |
2 | 600 | 40 |
3 | 700 | 40 |
4 | 800 | 40 |
5 | 1600 | 20 |
Table 1 Processing parameters in the friction stir welding (FSW) experiments.
Number | Tool rotation rate (rpm) | Welding speed (mm/min) |
---|---|---|
1 | 500 | 40 |
2 | 600 | 40 |
3 | 700 | 40 |
4 | 800 | 40 |
5 | 1600 | 20 |
Number | Model | Parameter |
---|---|---|
1 | Boundary velocity (BV) model - I | δ = 1.00 |
2 | Boundary velocity (BV) model - II | δ = 0.50 |
3 | Boundary shear stress (BSS) model | - |
Table 2 Parameters for the boundary velocity models in the present study.
Number | Model | Parameter |
---|---|---|
1 | Boundary velocity (BV) model - I | δ = 1.00 |
2 | Boundary velocity (BV) model - II | δ = 0.50 |
3 | Boundary shear stress (BSS) model | - |
Fig. 4. Comparison between the predicted and experimental temperature profiles at the locations 6 mm away from the welding center line. (Experiment No. 5 in Table 1).
Fig. 7. Cross-sectional macrostructure with different welding parameters. (a) 500 rpm, 40 mm/min; (b) 600 rpm, 40 mm/min; (c) 700 rpm, 40 mm/min; (d) 800 rpm, 40 mm/min; (e) 1600 rpm, 20 mm/min. The number above each figure is the measured deformation zone width.
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