Feasibility Study on Noncontact Monitoring of Temperature Distributions of Rotating Tool

Abstract:

In the fields of materials science and engineering, measuring temperature has become one of the most fundamental and important issues. In particular, there are growing demands for monitoring temperature gradient and its transient variation of materials being processed at higher temperatures because the temperature state during processing crucially influences the quality of final products. Such temperature monitoring is also required for rotating machining processes such as tuning, milling and friction stir welding (FSW). In this work, a new noncontact method for monitoring temperature distribution of a heated rotating cylindrical object is presented. A laser-ultrasonic technique is employed in the method. Surface temperature measurements for the cylindrical object using the laser-ultrasonic technique and heat conduction analyses are combined together for making quantitative evaluation of temperature distribution in the radial direction of the cylindrical object. To demonstrate the feasibility of this method, an experiment with a steel cylinder of 100 mm in diameter rotating at 300 min^-1 and heated up to 100 °C on the surface is carried out. A pulsed laser generator and a laser Doppler vibrometer are used for generating and detecting surface acoustic waves (SAWs) on the steel cylinder, respectively. Measured SAWs are used for determining both surface and internal temperatures of the cylinder. As a result, the estimated temperature distributions during heating almost agree with those measured by an infrared radiation camera.

• Periodical: Applied Mechanics and Materials (Volume 372)
• Pages: 336-339
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.372.336
• Online since: August 2013
• Authors: Akira Kosugi, Iwao Matsuya, Ikuo Ihara
• Keywords: Laser-Ultrasound, Non-Contact Monitoring, Nondestructive Evaluation, Rotating Cylinder, Temperature Distribution, Ultrasonic Measurement

References

[1] C. Dawes, et al., An introduction of friction stir welding and its development, Welding & Metal Fabrication, Jan. (1995) 13-16.

[2] C. Simon, P. Van Baren , and E. Ebbini, Two-dimensional temperature estimation using diagnostic ultrasound, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 45(4), (1998) 1088-1099.

DOI: 10.1109/58.710592

[3] T. -F. Chen, K. -T. Nguyen, S. -S. Wen, and C. -K. Jen, Temperature measurement of polymer extrusion by ultrasonic techniques, Measurement Science and Technology 10 (1999) 139-145.

DOI: 10.1088/0957-0233/10/3/007

[4] K. Balasubramainiam, V. V. Shah, R. D. Costley, G. Boudreaux, and J. P. Singh, High temperature ultrasonic sensor for the simultaneous measurement of viscosity and temperature of melts, Review of Scientific Instruments, 70 (1999) 4618-4623.

DOI: 10.1063/1.1150123

[5] W. -Y. Tsai, H. -C. Chen, and T. -L. Liao, An ultrasonic air temperature measurement system with self-correction function for humidity. Measurement Science Technology, 16 (2005) 548-555.

DOI: 10.1088/0957-0233/16/2/030

[6] K. Mizutani, S. Kawabe, I. Saito, and H. Masuyama, Measurement of temperature distribution using acoustic reflector, Japanese Journal of Applied Physics, 45 (2006) 4516-4520.

DOI: 10.1143/jjap.45.4516

[7] K. -N. Huang, C. -F. Huang, Y. -C. Li, and M. -S. Young, High precision fast ultrasonic thermometer based on measurement of the speed of sound in air, Review of Scientific Instruments, 73 (2002) 4022-4027.

DOI: 10.1063/1.1510576

[8] M. Takahashi, and I. Ihara, Ultrasonic monitoring of internal temperature distribution in a heated material, Japanese Journal of Applied Physics 47 (2008) 3894-3898.

DOI: 10.1143/jjap.47.3894

[9] M. Takahashi, and I. Ihara, Ultrasonic Determination of Temperature Distribution in Thick Plates during Single Sided Heating, Modern Physics Letters B, 22 (2008) 971-976.

DOI: 10.1142/s0217984908015693

[10] M. Takahashi, and I. Ihara, (2009), Quantitative evaluation of one-dimensional temperature distribution on material surface using surface acoustic wave, Japanese Journal of Applied Physics, 48, (2009) 07GB04-1-5.

DOI: 10.1143/jjap.48.07gb04

[11] H. Yamada, A. Kosugi, I. Ihara, Non-contact monitoring of surface temperature distribution by laser ultrasound scanning, Japanese Journal of Applied Physics, 50 (2011) 07HC06-1-5.

DOI: 10.1143/jjap.50.07hc06

[12] A. Kosugi, I. Ihara, and I. Matsuya, Accuracy Evaluation of Surface Temperature Profiling by a Laser Ultrasonic Method, Japanese Journal of Applied Physics, 51 (2012) 07GB01-1-8.

DOI: 10.1143/jjap.51.07gb01

[13] M. N. Ozisik, Boundary Value Problems of Heat Conduction, Dover Publications, New York, 1989, p.412.