Heat transfer and fluid flow and their effects on the solidification microstructure in full-penetration laser welding of aluminum sheet
Shaoning Geng, Ping Jiang, Xinyu Shao, Lingyu Guo, Xuesong Gao
Table 2
Parameters of heat source.
Heat source model parameters
Value
Effective absorption coefficient (
η
l
)
0.60 [
38
,
39
]
Effective radius of top surface (
r
e
)
0.25 mm
Effective radius of bottom surface (
r
i
)
0.125 mm
Proportion factor (
χ
)
1.4