Temperature Measurement in the Rotary Forming Process of a Nickel Superalloys (INCONEL) Sheet during Induction Heating

Abstract:

The processes of spinning and flow forming of hard metal sheets made from nickel superalloy INCONEL can be realized cold or with heating - e.g. by a induction or laser. When metal sheet is heated it is necessary to measure the temperature field on heated area, because its determines the deformation susceptibility. To control the temperature field pyrometers and infrared cameras are used. Due to strong changes in the surface of a formed material, under temperature influence (oxidation) and the action of the forming rolls, it is necessary to determine the emissivity coefficient values as a function of temperature and surface conditions. The paper presents the concept of determining these values, as well as an alternative technique for measuring temperature field, based on the methods of image analysis.

• Periodical: Key Engineering Materials (Volumes 622-623)
• Pages: 823-830
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.622-623.823
• Online since: September 2014
• Authors: Michał Kwiatkowski, Krzysztof Zaba, Maciej Nowosielski, Danel Pociecha, Tomasz Tokarski, Paweł Kita
• Keywords: Emissivity, Flow Forming, Induction Heating, Superalloys, Temperature Measurement

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