Donglei Liu, Huihui Liu, Pin Li, Huixia Liu. Research on Laser Direct Jointing of 5052 Aluminum Alloy and PBT[J]. Chinese Journal of Lasers, 2021, 48(22): 2202019
- Chinese Journal of Lasers
- Vol. 48, Issue 22, 2202019 (2021)
Fig. 1. Schematic of laser surface oxidation pretreatment of aluminum alloy
Fig. 2. Schematic of laser direct jointing of aluminum alloy and PBT
Fig. 3. Surface micro-morphologies of aluminum alloy under different laser oxidation powers (2000×). (a) 7 W; (b) 10 W; (c) 13 W; (d) 16 W
Fig. 4. Effect of laser oxidation power on oxygen content on aluminum alloy surface
Fig. 5. Cross-sectional morphologies of aluminum alloy under different laser surface oxidation powers
Fig. 6. Effect of oxidation power on surface roughness of aluminum alloy
Fig. 7. Joint strength under different welding powers
Fig. 8. Cross-sectional morphologies of joint under different laser jointing powers
Fig. 9. Effect of laser oxidation power on surface contact angle of aluminum alloy
Fig. 10. Effect of laser oxidation power on surface energy
Fig. 11. High-magnification Al2p XPS spectra of aluminum alloy surface. (a) Before oxidation treatment; (b) after oxidation treatment
Fig. 12. High-magnification O1s XPS spectra of aluminum alloy surface. (a) Before oxidation treatment; (b) after oxidation treatment
Fig. 13. High-magnification C1s XPS spectra of stripped PBT surface of joint under different etching time
Fig. 14. High-magnification spectra of stripped PBT surface of joint when etching time is 600 s. (a) Al2p; (b) O1s
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