Temperature monitoring of Nd:YAG laser cladding (CW and PP) by advanced pyrometry and CCD-camera-based diagnostic tool

M. Doubenskaia; Ph. Bertrand; Igor Yu. Smurov

doi:10.1117/12.552850

2 April 2004 Temperature monitoring of Nd:YAG laser cladding (CW and PP) by advanced pyrometry and CCD-camera-based diagnostic tool

M. Doubenskaia, Ph. Bertrand, Igor Yu. Smurov

Author Affiliations +

Proceedings Volume 5399, Laser-Assisted Micro- and Nanotechnologies 2003; (2004) https://doi.org/10.1117/12.552850
Event: Laser-Assisted Micro- and Nanotechnologies 2003, 2003, St. Petersburg, Russian Federation

Abstract

The set of original pyrometers and the special diagnostic CCD-camera were applied for monitoring of Nd:YAG laser cladding (Pulsed-Periodic and Continuous Wave) with coaxial powder injection and on-line measurement of cladded layer temperature. The experiments were carried out in course of elaboration of wear resistant coatings using various powder blends (WC-Co, CuSn, Mo, Stellite grade 12, etc.) applying variation of different process parameters: laser power, cladding velocity, powder feeding rate, etc. Surface temperature distribution to the cladding seam and the overall temperature mapping were registered. The CCD-camera based diagnostic tool was applied for: (1) monitoring of flux of hot particles and its instability; (2) measurement of particle-in-flight size and velocity; (3) monitoring of particle collision with the clad in the interaction zone.

Citation Download Citation

M. Doubenskaia, Ph. Bertrand, and Igor Yu. Smurov "Temperature monitoring of Nd:YAG laser cladding (CW and PP) by advanced pyrometry and CCD-camera-based diagnostic tool", Proc. SPIE 5399, Laser-Assisted Micro- and Nanotechnologies 2003, (2 April 2004); https://doi.org/10.1117/12.552850

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