Numerical Simulation of Residual Stresses during the Heat Treatment of Dies Made of Hot Work Tool Steel

Abstract:

Article Preview

Residual stresses are of great importance during the entire production cycle of high-grade steels. The use of modern tools based on the finite element method is steadily increasing to optimize heat treatment processes. As for industrial purposes it is often not possible to measure the entire set of material data a sensitivity analysis shows the relative influence of material properties related to phase transformation on the residual stresses during hardening. Subsequently the application of the numerical heat treatment model is shown on two examples: The magnitudes of residual stresses during the quenching of a forged bar in different quenching media are compared. The paper concludes with a numerical simulation of the heat treatment of a die used for extrusion processes. Phase distribution and residual stresses after gas quenching of the tool are presented.

Info:

Periodical:

Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander

Pages:

433-438

DOI:

10.4028/www.scientific.net/MSF.524-525.433

Citation:

C. Redl et al., "Numerical Simulation of Residual Stresses during the Heat Treatment of Dies Made of Hot Work Tool Steel", Materials Science Forum, Vols. 524-525, pp. 433-438, 2006

Online since:

September 2006

Export:

Price:

$35.00

[1] Schützenhöfer, W., Redl, C., Schweiger, H., Siller, I., Dickinger, N., Schneider, R.: Proceedings 1 st Int. Conference on Distortion Engineering, Bremen, September 2005, pp.65-74.

[2] Mitter, W., Umwandlungsplastizität und ihre Berücksichtigung bei der Berechnung von Eigenspannungen in Materialkundlich-Technische Reihe (Gebr. Borntraeger, Germany 1987).

DOI: 10.1002/zamm.19880681232

[3] Fischer, F.D.; Sun, Q.P., Tanaka, K.: Appl. Mech. Rev. 49 (1996), pp.317-264.

[4] Franz, C.: Experimentelle Untersuchungen und Simulationen der Eigenspannungsausbildung und des Verzugsverhaltens bei der Durch- und Einsatzhärtung von Stählen (PhD thesis, Universität Karlsruhe, 2004).

[5] Besserdich, G., Untersuchung zur Eigenspannungs- und Verzugsausbildung beim Abschrecken von Zylindern aus den Stählen 42CrMo4 und Ck45 unter Berücksichtigung der Umwandlungsplastizität (PhD thesis, Universität Karlsruhe, 1993).

[6] Wolff, M., Böhm, M., Löwisch, G., Schmidt, A.: Comp. Mat. Sci. 32 (2005), pp.604-610.

[7] Sommitsch, C., Sievert, R., Wlanis, T., Günther, B., Wieser, V.: J. Comp. Mater. Sci., in press (2006).

[8] Redl, C., Wieser, V., Sommitsch, C., Wlanis, T., Schützenhöfer, W., Gaudin, S., Geigges, B.: Proceedings 7 th Int. Tooling Conference, Torino, Mai (2006).

In order to see related information, you need to Login.