Successfully achieved over 16 times lifespan improvement! Case study of New Kanak treatment + PVD (TiN) application.
To improve the lifespan of the core punch, we reviewed the selection of steel types. Previously, we used SKH51 material with CVD-TiC treatment, but the cause of the lifespan issue was the tip of the punch cracking in a ring shape, so we changed the material to carbide. By applying PVD (TiCN4μ) to the new Kanack treatment, we successfully achieved more than a 16-fold increase in lifespan compared to before. 【Case Summary】 ■ Previous Issues - The tip of the punch cracks in a ring shape - Peeling of the PVD coating ■ Treatment Effects (due to increased surface hardness) - Reduced wear - Suppression of chipping and peeling of PVD due to new Kanack treatment (undercoat treatment) *For more details, please refer to the PDF document or feel free to contact us.
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【Other Overview】 ■Target: Hole Punch ■Material: SKH51, Carbide ■Processing Name: New Kanack Treatment + PVD (TiN) *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Kanak processing is a gas nitriding treatment using a unique method. The material is held in a heating atmosphere of around 500°C for several hours, allowing nitrogen to diffuse from the surface of the steel and react with metal elements to form a hardened layer. Unlike conventional nitriding treatments, there are very few brittle iron nitride compounds near the surface, and the high compressive residual stress along with a smooth hardness distribution are characteristics of Kanak processing.