Iterative Modification of Lumped Heat Capacity Method on Predicting Residual Stress and Distortion of Still-Quenched S45C Steel Cylinder


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Computer simulation can be utilized to predict the property and quality of heat-treated products. The prediction accuracy depends upon the thermal boundary condition and the thermal history from which surface heat transfer coefficient (HTC) is derived. Variables studied are thermal boundary and the surface HTC. Zone-based thermal boundary is set with and without edge effect. Lumped heat capacity method is used to predict HTC of silver probe (1st step), then iterative modification method is applied to the prediction of HTC of SUS304 cylinder (2nd step) and S45C cylinder itself (3rd step). Using FEM tool of DEFORM-HT combined with lumped heat program LUMPPROB, this research is intended to obtain the number of thermal boundary and iterative modification step. The higher accuracy is obtained by employing the edge effect of thermal boundary. The 2nd step significantly increases the prediction accuracy of radial distortion and residual stress distribution. However, 3rd step does not significantly increase the prediction accuracy.



Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




A. Sugianto et al., "Iterative Modification of Lumped Heat Capacity Method on Predicting Residual Stress and Distortion of Still-Quenched S45C Steel Cylinder", Materials Science Forum, Vols. 561-565, pp. 1857-1860, 2007

Online since:

October 2007




[1] Joint Research Results Symposium Document, JSHT and JSMS, Kyoto, 2004, pp.41-72.

[2] S. Sugisawa: Master Thesis, Utsunomiya Univ, (2005).

[3] R.A. Hardin and C. Beckermann: Proc of 59th Tech and Operating Conf, SFSA, Chicago, (2005).

[4] D.Y. Ju and M. Narazaki: Proc of 20th ASM-HTS Conf, (St. Louis, MO, 2000), pp.441-447.

[5] M. Narazaki, G.E. Totten and G.M. Webster, in: Handbook of Residual Stress and Deformation of Steel, edited by G.E. Totten, M.A.H. Howes, and T. Inoue, ASM Intl, OH (2002), pp.248-295.

[6] M. Narazaki, K. Osawa, A. Shirayori and S. Fuchizawa: Proc of 19 th ASM Heat Treating Society Conf, (Cincinnati, OH, 1999), pp.600-607.

[7] DEFORM-HT (2D Ver9. 0) Users Manual, (SFTC, Columbus, OH, 2007).

[8] A. Sugianto, M. Narazaki and M. Kogawara: Proc of 2nd Indonesia Japan Joint Scientific Symposium, (Jakarta, 2006), File No. IJJSS06-278.

[9] S. Dennis: La Revue de Métallurgie Vol. 77 (1997), pp.158-176.

[10] K. Ichitani: Proc of The 3rd Intl Conf on Thermal Process Modelling and Simulation, IFHTSE, (Budapest, 2006), File No. MOD-P3.

[11] Y. Watanabe et al: Solid Sate Phenomena Vol. 118 (2006), pp.349-354.