Calibrating IR cameras for in-situ temperature measurement during the electron beam melt processing of Inconel 718 and Ti-Al6-V4

R. B. Dinwiddie; M. M. Kirka; P. D. Lloyd; R. R. Dehoff; L. E. Lowe; G. S. Marlow

doi:10.1117/12.2229070

8 June 2016 Calibrating IR cameras for in-situ temperature measurement during the electron beam melt processing of Inconel 718 and Ti-Al6-V4

R. B. Dinwiddie, M. M. Kirka, P. D. Lloyd, R. R. Dehoff, L. E. Lowe, G. S. Marlow

Author Affiliations +

Proceedings Volume 9861, Thermosense: Thermal Infrared Applications XXXVIII; 986107 (2016) https://doi.org/10.1117/12.2229070
Event: SPIE Commercial + Scientific Sensing and Imaging, 2016, Baltimore, MD, United States

Abstract

High performance mid-wave infrared (IR) cameras are used for in-situ electron beam melt process monitoring and temperature measurements. Since standard factory calibrations are insufficient due to very low transmissions of the leaded glass window required for X-ray absorption, two techniques for temperature calibrations are compared. In-situ measurement of emittance will also be discussed. Ultimately, these imaging systems have the potential for routine use for online quality assurance and feedback control.

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R. B. Dinwiddie, M. M. Kirka, P. D. Lloyd, R. R. Dehoff, L. E. Lowe, and G. S. Marlow "Calibrating IR cameras for in-situ temperature measurement during the electron beam melt processing of Inconel 718 and Ti-Al6-V4", Proc. SPIE 9861, Thermosense: Thermal Infrared Applications XXXVIII, 986107 (8 June 2016); https://doi.org/10.1117/12.2229070

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