DK Cryo Process that suppresses coating peeling and chipping, maximizing performance.
Even with coating applied, there are cases where sufficient performance is not achieved due to early delamination or chipping of the cutting edge. This may be influenced not by the coating itself, but by the instability of the base material's structure or internal stresses. The DK Cryo Process is a technology that enhances the toughness and wear resistance of the base material by promoting the transformation of residual austenite and stabilizing the metal structure through ultra-low temperature treatment. This strengthens the foundation that supports the coating, leading to improved adhesion and alleviation of stress concentration, thereby suppressing the occurrence of delamination and chipping. As a result, it brings out performance that could not be fully realized by the coating alone, contributing to reduced variability in tool life and maintaining stable processing quality. Additionally, this treatment can be applied after existing heat treatment and coating processes, allowing for implementation without the need for process changes or new equipment investments. It contributes to overall cost improvement in the field by extending tool life, reducing replacement frequency, and decreasing maintenance labor.
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basic information
**Main Features** ■ Process compatibility independent of processing timing Can be added to existing heat treatment processes such as quenching and tempering. Applicable to coated parts and parts in use, allowing for minimal changes in the process during implementation. ■ Extended tool and mold lifespan (up to 7 times longer) Contributes to the extension of tool and mold life by suppressing chipping and wear. The effectiveness has been confirmed through various demonstration tests. ■ Improved dimensional stability (within ±0.01mm) Reduces residual stress through microstructure stabilization via cryogenic treatment. Helps suppress dimensional changes during use, contributing to stable precision maintenance. *Effects may vary depending on material, shape, and usage conditions. *For more details, please check the documentation or feel free to contact us.
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Applications/Examples of results
Improvement Examples - Reduction of chipping at the punch tip - Suppression of component wear - Extension of tool life - Reduction of maintenance frequency *We are offering a collection of improvement case studies (booklet) for mold components and tools for free. For those who request the materials, we will deliver them by mail. *Effects may vary depending on material, shape, and usage conditions. *For more details, please download the PDF or feel free to contact us.
Detailed information
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The final lot was damaged due to "breakage" rather than "chipping." This indicates that it was able to be used to its lifespan limit due to long-term use. We have suppressed early damage originating from chipping and achieved stable long life. Thanks to the DK Cryo Process, the lifespan of TiCN-coated punches has improved by over 400%. The number of replacements at the 20,000 shot mark has been reduced from 4 times to 1 time. As a result, we have achieved approximately 68% cost reduction in total costs (according to our estimates). *The effects may vary depending on processing conditions, etc.
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