Thermal Fatigue Testing of Hot-Working Die Steel Using Laser Emission

A method for assessing the thermal fatigue material resistance is proposed, which ensures testing under conditions close to real hot-stamping. To implement the proposed technique, an installation is designed and manufactured that provides heating of the sample end surfaces with regulation of the the...

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Bibliographic Details
Published in:Steel in translation 2024, Vol.54 (4), p.343-348
Main Authors: Gorbatyuk, S. M., Kobelev, O. A., Nagovitsyn, V. A., Chichenev, N. A.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Cycle ratio
Fatigue tests
Heat treatment
Hot stamping
Hot work tool steels
Hot working
Laser beam heating
Materials Science
Metal fatigue
Thermal fatigue
Thermal resistance
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Summary:A method for assessing the thermal fatigue material resistance is proposed, which ensures testing under conditions close to real hot-stamping. To implement the proposed technique, an installation is designed and manufactured that provides heating of the sample end surfaces with regulation of the thermal cycle frequency and ratio of heating-cooling periods. The results of theoretical and experimental studies of the temperature conditions of operation of the working tool of an automatic hot-stamping press are presented. The application of the proposed evaluation method of thermal fatigue material resistance makes it possible to study the patterns of thermal fatigue destruction of the hot-stamping tool material and, on this basis, to develop and optimize laser heat treatment technology and other technological processes.
ISSN:0967-0912
1935-0988
DOI:10.3103/S0967091224700736