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Heat Transfer Research
Fator do impacto: 1.199 FI de cinco anos: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v33.i7-8.90
18 pages

Pyrometry Applications for Laser, Plasma, and Electron-Beam Machining

I. Yu. Smurov
C. N. R. S., Institut de Science et de Genie des Materiaux et Procedes B. P. 5, Odeillo, F-66125 Font-Romeu Cedex; Ecole Nationale d'Ingenieurs de Saint-Etienne, 58 rue Jean Parot, 42023 Saint -Etienne Cedex 2, France

RESUMO

A set of pyrometers is developed and applied for surface temperature monitoring in pulsed-periodic Nd:YAG-laser welding, deep penetration welding by a CO2 laser, an electron beam and a plasma arc; laser assisted machining, plasma-arc steel refining, waste treatment in a plasma furnace, plasma cladding, and plasma spraying. A 2D pyrometer is used to study the evolution of temperature profiles and temperature gradients vs. typical variation of the process variables. The color and the true temperatures are found with the aid of a two-color pyrometer, the true temperature is also reconstructed on the basis of polychromatic measurement (10 wavelengths). It is shown that the pyrometers developed can be used for process monitoring and on-line control in a wide range of high-temperature applications.


Articles with similar content:

OPTICAL MEASUREMENTS OF SURFACE TEMPERATURE IN LASER MACHINING
International Heat Transfer Conference 10, Vol.4, 1994, issue
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CHARACTERISATION OF PLASMA-SPRAYED BORON CARBIDE AND TUNGSTEN LAYERS FOR FUSION APPLICATIONS
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.9, 2005, issue 1
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Progress in Plasma Processing of Materials, 1999, Vol.1, 1999, issue
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CHARACTERISATION OF AL2O3 PLASMA SPRAYING BY ATOMIC EMISSION SPECTROSCOPY AND NEAR INFRARED PYROMETRY
Progress in Plasma Processing of Materials, 2001, Vol.0, 2001, issue
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SURFACE TEMPERATURE MONITORING DURING PULSED LASER, ELECTRON BEAM AND PLASMA ACTION
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.1, 1997, issue 1
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