Modeling temperature fields in structural elements and products used in metallurgical and forging operations

• Published in: Metallurgist (New York) Vol. 44; no. 3; pp. 144 - 148
• Main Authors: Chumachenko, E. N., Pechenkin, D. V., Rogalevich, L. É.
• Format: Journal Article
• Language: English
• Published: New York Springer Nature B.V 01.03.2000
• ISSN: 0026-0894; 1573-8892
• DOI: 10.1007/BF02466163

In modeling metal-shaping processes, the temperature of the semifinished product is often assumed to be the same over its entire volume. However, it is known that temperature increases somewhat inside the metal being deformed due to the heating that accompanies deformation. Meanwhile, the surface layers undergo substantial cooling due to the transfer of heat to the cold tool. The nonuniformity of the mechanical properties created in the volume of the semifinished product due to such a temperature distribution can have a significant effect on the stress-strain state and character of flow of the metal. In this case, results obtained without allowance for the temperature field may differ appreciably from the actual values. It is apparent from this that it is necessary to study the process of the cooling of metal during plastic deformation. However, such studies can increase rather than decrease the above-noted errors if the temperature field is calculated incorrectly.