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2013 №11 (14) 2013 №11 (16)

Автоматическая сварка 2013 #11
«Автоматическая сварка», 2013, № 10-11, с. 101-107

MICRO-WELDING OF ALUMINUM ALLOY BY SUPERPOSITION OF PULSED Nd:YAG LASER AND CONTINUOUS DIODE LASER

Authors
Y. OKAMOTO1, S. NAKASHIBA2, T. SAKAGAWA2 and A. OKADA1
Y. OKAMOTO1, S. NAKASHIBA2, T. SAKAGAWA2 and A. OKADA11Graduate School of Natural Science and Technology, OkayamaUniversity. 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan. E-mail: okamoto@mech.okayama-u.ac.jp
2Advanced Laser Research Laboratory, Kataoka Corporation. 2-14-27 Shin-yokohama, Kohoku-ku, Yokohama 222-0033, Japan


Abstract
The combination of a pulsed Nd:YAG laser and a continuous diode laser could perform the high-performance micro-welding of aluminum alloy. A pulsed Nd:YAG laser was absorbed effectively from the beginning of laser scanning by pre-heating Nd:YAG laser pulse with the superposition of continuous LD, and wide and deep weld bead could be obtained with better surface integrity. 6 Ref., 2 Tables, 8 Figures.


Keywords: pulsed Nd:YAG laser, aluminum alloy, micro-welding


Received:                01.03.13
Published:               06.11.13


References
1. Zhang, J., Weckman, D.C., Zhou, Y. (2008) Effects of temporal pulse shaping on cracking susceptibility of 6061-T6 aluminum Nd:YAG laser welds. Welding J., 87, 18-30.
2. (2001) Chronological Scientific Tables 2001. Maruzen: National Astronomical Observatory Institute, 523.
3. Abe, N. (2003) Trend of direct materials processing with high power diode lasers. The Review of Laser Engineering, 31(5), 318-325.
4. Sakurai, T., Nakagawa, Y. (2004) Development of LD + YAG hybrid laser. In: Proc. of 62nd Laser Materials Processing Conf., 102-110.
5. Sakagawa, T., Okamoto, Y., Uno, Y. et al. (2009) High-efficiency welding of aluminum alloy by hybrid system combined pulsed Nd:YAG laser and diode laser. In: Proc. of 26th Int. Congress on Applications of Lasers & Electro-Optics, 1008-1014.
6. Haraguchi, S., Okamoto, Y., Uno, Y. et al. (2010) Investigation on welding phenomenon for aluminum alloy by superposition of pulsed YAG laser and diode laser. J. of Advanced Mechanical Design, Systems, and Manufacturing, 4(5), 875-882.
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