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‘HNP Treatment’ Extends Cold Forging Punch Life by 1.5 Times
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2025-11-20
Technical challenges in cold forging and cold extrusion often involve high costs and labor from frequent punch replacements. Nisshin Partechtual (Japan), leveraging extensive die design expertise and cutting-edge femtosecond laser technology, has developed an innovative surface modification technology named ‘HNP Treatment’ (Patent No. 774560). This treatment creates countless micro-dimples approximately 50μm in diameter and 2μm deep on the punch surface, dramatically reducing friction and enhancing lubrication. The result is a significant increase in tool life by 1.5 to 2 times on average, with some tests showing up to 3 times lifespan extension. It also suppresses galling and adhesion while maintaining existing coating layers. Suitable for various punch shapes, it improves forming precision and product quality while reducing energy consumption and environmental impact. Nisshin Partechtual offers tailored processing services to help manufacturers cut costs and boost productivity.
冷間鍛造
冷間壓造
沖頭
HNP處理
Nissin Pertechtual
模具設計
飛秒雷射技術
降低摩擦係數
提升潤滑性能
延長工具壽命
cold forging
cold extrusion
HNP Treatment
die design
reduced friction coefficient
enhanced lubrication
increase in tool life
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