Implementation of newly developed tests with heated and internally cooled tool steel samples for different applications

Abstract

In this study two new tests were developed, i.e., with continuous internal water cooling as well as discontinuous internal water and air cooling. It was proved that the first type of testing is appropriate for simulating the time course of the temperature at a selected depth of a thermally loaded, hot-working die surface layer, i.e., the temperature field on the die surface layer. The second type of testing is appropriate for a study of the thermal fatigue resistance of a tool material.

Keywords

• diss/continuous internal cooling
• tool steels
• thermal fatigue
• microhardness profile