Formation and Controlling Mechanism of Pores in Laser-TIG Hybrid Welding of 6061-T6 Aluminum Alloys at High Peed

Wang Hongyang; Sun Jia; Liu Liming

doi:10.3788/CJL201845.0302001

Chinese Journal of Lasers, Volume. 45, Issue 3, 302001(2018)

Formation and Controlling Mechanism of Pores in Laser-TIG Hybrid Welding of 6061-T6 Aluminum Alloys at High Peed

Wang Hongyang, Sun Jia, and Liu Liming^*

Author Affiliations

[in Chinese]

show less

Abstract Get PDF(in Chinese)

Figures & Tables(7)

Fig. 1. Schematic of laser-TIG hybrid welding

Download full size

Fig. 2. Morphologies of pores in vertical section of welds under different pulse durations. (a) 3 ms; (b) 4 ms; (c) 5 ms

Download full size

Fig. 3. Porosity of laser-TIG hybrid welding

Download full size

Fig. 4. Morphologies of pores in 9 cross sections of welds at arc current of 180 A

Download full size

Fig. 5. Morphologies of pores in 9 cross sections of welds at arc current of 200 A

Download full size

Table 1. Main chemical compositions of 6061-T6 aluminium alloys (mass fraction, %)
View table
Table 1. Main chemical compositions of 6061-T6 aluminium alloys (mass fraction, %)
Element Si Fe Mn Mg Al
Content 0.70 0.70 0.10 1.00 Bal.

Table 2. Process parameters of laser-TIG hybrid welding
View table
Table 2. Process parameters of laser-TIG hybrid welding
Parameter Welding speed /(m·min^-1) Torch angle /(°) Defocusing /mm Laser-arcdistance /mm Shielding gas flow /(L·min^-1)
Value 3 60 -1 2 20

Tools

Get Citation

Copy Citation Text

Wang Hongyang, Sun Jia, Liu Liming. Formation and Controlling Mechanism of Pores in Laser-TIG Hybrid Welding of 6061-T6 Aluminum Alloys at High Peed[J]. Chinese Journal of Lasers, 2018, 45(3): 302001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites