Study on Measurement of Melting Process of Molten Pool Formed by Laser Scanning Mirror

Abstract:

Article Preview

The profile and temperature distribution of laser molten pool are mainly factors which have directly effect on quality of laser processing (laser melting and laser cladding). It is very necessary to study measurement method of melting process in laser molten poo1 on-line, for improving processing design and inspecting laser processing quality. A system of dynamic process measurement for laser molten pool was developed. The melting process of laser scanning molten pool formed by high power CO2 Laser was measured. Its temperature distribution was analyzed by special analysis software. It was shown that a section of integrated molten pool would come into being in the middle of the laser scanning line spot after a period of scanning time, and then the molten pool got increased in length with the time, and a little increased in width at the same time, the result was consistent with that of computer numerical simulation. Compared with laser focusing spot, laser scanning spot was more uniform in temperature distribution, that could be propitious to improve the quality of laser processing.

Info:

Periodical:

Key Engineering Materials (Volumes 392-394)

Edited by:

Guanglin Wang, Huifeng Wang and Jun Liu

Pages:

141-145

DOI:

10.4028/www.scientific.net/KEM.392-394.141

Citation:

Y.S. Wang et al., "Study on Measurement of Melting Process of Molten Pool Formed by Laser Scanning Mirror", Key Engineering Materials, Vols. 392-394, pp. 141-145, 2009

Online since:

October 2008

Export:

Price:

$35.00

[1] J.C. Li: Diffraction of Laser and Calculation on Thermal Acting (Science Press, China 2003).

[2] J.C. Li, Q.G. Zheng and K. Ma: Chinese J. Lasers, Vol. A29 (2002) No. 6, pp.321-323.

[3] X.C. Yang and Y.S. Wang: China Mechanical Engineering, Vol. 5 (2004) No. 3, pp.196-200.

[4] Y.S. Wang and X.C. Yang: Chinese J. Lasers, Vol. 33 (2006) No. 7, p.984.

[5] W.Z. Chen, L. Jia and X.D. Zhang: Applied Laser, Vol. 24 (2004) No. 3, p.130.

[6] J.M. Borhanian: Proceedings of the Third International WLT-Conference on Lasers in Manufacturing 2005 (Munich, 2005), pp.137-141.

[7] X.F. Cheng, T.R. Fu and X.L. Fan: Chinese Science, Series G, Vol. 34 (2004) No. 6, p.639.

[8] F. Wang, F. Wang and Z.Y. Ma: Power Equipment Vol. 6 (1998), pp.2-5.

[9] Q.Y. Wang: CCD Applied Technology (Thanjin University Press, China 2000).

[10] J.L. Pan: Modern Arc Welding Control (Machinery Industry Press, China 2000).

In order to see related information, you need to Login.