Evaluation of Temperature Distribution in Thermal Forming Process of Steel Plate by Oxy-gas Source Line Heating

Authors

Department of Materials Engineering, Maleke-Ashtar University of Technology, Isfahan, Iran

Abstract

The aim of the present research is calculation and determination of the temperature distribution in the oxy-gas source line heating process for application in the steel plates. Analytical method was used to calculate the temperature distribution by solving mathematical equations. The temperature distribution was determined with numerical method using MATLAB software. A computerized numerical control line heating apparatus was used for carrying out the processes. ITI thermograph camera was used to measure the temperature. The effect of torch distance, gas flow and torch speed on the temperature distribution at the upper and lower surfaces of plate were evaluated. The changes of temperature distribution were achieved at torch speeds of 120, 200 and 300 mm/min, gas flow of 10, 9 and 8 lit/min and torch distances of 30, 40 and 50 mm. Calculated and measured maximum temperatures reached to 900, 810 and 720 K, and 885, 785, 690 K, at torch speeds of 120, 200, 300 mm/min, respectively. The calculated and measured maximum temperatures at gas flow of 10, 9, 8 lit/min are attained to be 900, 810 and 750 K, and 885, 795 and 740 K, respectively. Maximum calculated and measured temperatures at torch distance of 30, 40 and 50 mm are accomplished to be 900, 880 and 810 K and 885, 840 and 790 K, respectively.
 

Keywords

References

1. Glausen, H. B., “Plate Forming by Line Heating”, Ph.D. Thesis, Denmark University of Technology, Denmark, 2000.
2. Battig, A., and Deluccioni, M. A. V., “Heat Flux Equation Applied to Thermal Conduction Problem”, Revista Brasileira de Fisica, Vol. 14, pp. 27-36, 1984.
4. Chen, B. Q., “Prediction of Heating Induced Temperature Fields and Distortions in Steel Plates”, MSc Dissertation in Naval Architecture and Marine Engineering, Universidade Tecnica de Lisboa, Lisbon, 2011.
9. Nguyen, N. T., Ohta, A., Matsuoka, K., Suzuki, N., and Maeda, Y., “Analytical Solution of Double-Ellipsoidal Moving Heat Source and its Use for Evaluation of Residual Stresses in Bead-on-Plate”, International Workshop on Fracture Mechanics & Advanced Materials, Sydney University, Dec. 8-10, 1999.
10. Cheng, P. J., and Lin, S. C., “An Analytical Model for the Temperature Field in the Laser Forming of Sheet Metal”, Journal of Materials Processing Technology, Vol. 101, pp. 260-267, 2000.
11. Nguyen, N. T., Mai, Y. W., Simpson, S., and Ohta, A., “Analytical Approximate Solution for Double Ellipsoidal Heat Source in Finite Thick Plate”, Welding Journal, Vol. 89, pp. 82-93, 2004.
12. Kim, J., and Na, S. J., “Feedback Control for 2D Free Curve Laser Forming”, Optics and Laser Technology, Vol. 37, pp. 139-146, 2005.
13. Grin, A., Saur, D., Desmans, J. Y., and Harman, S., “Identification Models for Transient Heat Transfer on a Flat Plate”, Experimental Thermal and Fluid Science, Vol. 31, pp. 701-710, 2007.
14. Biswas, P., Mandal, N. R., and Sha, O. P., “Numerical and Dimensional Analysis for Prediction of Line Heating Residual Deformations”, Journal of Marine Science and Application, Vol. 9, pp. 14-21, 2010.
15. Jang, C. D., Moon, S. C., and Ko, D. E., “Acquisition of Line Heating Information for Automatic Plate Forming”, Proceeding of Symposium on Ship Structures Committee, Seoul National University, Korea, 2000.
16. Shin, J. G., Kim, W. D., and Lee, J. H., “Numerical Modeling for Systematization of Line Heating Process”, Journal of Hydrospace Technology, pp. 41-54, 1996.
17. Yu, G., Anderson, R. J., Maekawa, T., and Patrikalak N. M., “Efficient Simulation of Shell Forming by Line Heating”, International Journal of Mechanical Sciences, Vol. 4, pp. 2349-2370, 2001.
18. Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel, Designation A572/A572M-04, The Annual Book of ASTM Standards, Section 01, Vol. 01.04, ASTM International, West Conshohocken, United States, 2005.
19. Negi, V., and Chattopadhyaya, S., “Critical Assessment of Temperature Distribution in Submerged Arc Welding Process”, Advances in Materials Science and Engineering, Vol. 50, pp. 94-103, 2013.
22. Kou. S., Welding Metallurgy, 2nd ed., John Wiley & Sons Inc., Hoboken, New Jersey, 2002.
Journal of Advanced Materials in Engineering (Esteghlal)
Volume 36, Issue 1
June 2017
Pages 53-70

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