Xia Peiyun, Yin Yuhuan, Cai Aijun, Huang Zheng, Li Dan, Bao Yunfeng, Feng Xiaosong. Laser Cleaning Process of 2219 Aluminum Alloy Anodic Oxide Film Before Welding[J]. Chinese Journal of Lasers, 2019, 46(1): 102005
- Chinese Journal of Lasers
- Vol. 46, Issue 1, 102005 (2019)
Fig. 1. Cross-section morphology and surface morphology of 2219 aluminum alloy. (a) Cross-section morphology; (b) surface morphology
Fig. 2. Schematic of laser cleaning device
Fig. 3. Surface of sample cleaned at different speeds
Fig. 4. SEM morphology of sample surface cleaned at different speeds. (a) 800 mm·min-1; (b) 1000 mm·min-1; (c)1400 mm·min-1; (d) 1800 mm·min-1
Fig. 5. Component analysis of area A
Fig. 6. Components analysis of area B
Fig. 7. Schematic of spot scanning track in laser cleaning process
Fig. 8. Schematic of spots effective overlap in clean direction
Fig. 9. SEM morphology of sample surface cleaned at different speeds near threshold. (a) 1000 mm·min-1; (b) 1200 mm·min-1
Fig. 10. Appearance of welded joints
Fig. 11. X-ray analysis of welded joints
Fig. 12. Surface topography of sample after laser cleaning
Fig. 13. The areas exist the mechanism of elastic vibration stripping. (a) Area without spot overlap; (b) cleaning area edge
Fig. 14. Principle of laser removing anodic oxide film
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