Investigation of Methods for Extending the Service Life of Dies Made of SKD 11 Steel
DOI:
https://doi.org/10.37547/ijasr-06-06-02Keywords:
SKD 11 steel, wear resistance, heat treatmentAbstract
The article investigates the main technological methods for extending the service life of dies manufactured from SKD 11 cold-work tool steel. SKD 11 steel is widely used in the production of stamping, cutting, forming and blanking tools due to its high hardness, wear resistance and dimensional stability after heat treatment. However, during operation, dies are exposed to intensive contact loads, abrasive wear, adhesive interaction, impact stresses and thermal effects, which gradually reduce their working capacity. In this study, the influence of heat treatment, nitriding and TiN coating on the wear resistance and durability of SKD 11 dies was analyzed. Particular attention was paid to the relationship between microstructure, surface hardness, residual stresses and operational stability of the die surface. The results of the analysis show that the service life of SKD 11 dies can be significantly increased by selecting an optimal heat treatment regime, applying surface hardening technologies and using protective coatings. Based on the obtained findings, technological recommendations were developed for improving the reliability, wear resistance and service life of dies used in mechanical engineering production.
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