Interaction of Load and Residual Stresses in Sintered 1.3344 High Speed Steel

Abstract:

Compressive residual stresses enhance cold forging tool lifetime. These stresses can be induced during the grinding process of the tool manufacturing. To use residual stresses induced by grinding it must be understood how load and residual stresses interact in ground and unground sub-surface zones. This has been studied with specimen from powder metallurgically produced 1.3344 high-speed steel. Residual stresses in the specimen where measured through x-ray diffraction in ground and unground conditions and under various applied load stresses. Residual stresses and load stresses sum up directly proportional at lower stresses, while at higher stresses a saturated stress state is achieved and the whole material deforms plastically.

• Periodical: Advanced Materials Research (Volume 1018)
• Pages: 145-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1018.145
• Online since: September 2014
• Authors: Berend Denkena, Thilo Grove, Henning Lucas*
• Keywords: Grinding, Residual Stress, Sheet-Bulk Metal Forming

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