The impact of knive finish on cutting performance is often overlooked, but in fact, it has a profound impact. knive finishes can reduce friction between the knive and the material, extend knive life, improve cut quality, and enhance process stability, thereby saving costs, improving efficiency, and increasing quality.
With increasing demand for efficient and precise machining in modern manufacturing, the use of high-quality knive finishes will become a future trend.
Friction during the cutting process is a key factor affecting knive performance. The smoother the knive surface, the less friction there is with the material, which reduces heat buildup during cutting, reducing thermal deformation during processing, thereby improving cutting efficiency and ensuring consistent product quality. However, knives with a lower surface finish experience greater friction with the material during cutting, which can easily generate more heat and fluctuate cutting forces. This increases heat accumulation during cutting, leading to premature knive wear, damage, or deformation.
knive life directly impacts production costs. Improving knive finish can effectively extend knive life. A smooth knive surface prevents material from clinging to the knive during cutting, allowing the knive to maintain its sharpness for longer. Highly polished cutting knives reduce material wear and tear, thereby extending knive life. Conversely, rough cutting surfaces increase chip buildup and friction, leading to wear and shortening knive life.
The cutting quality of slitting knives directly impacts product precision. Highly polished slitting knives ensure a smoother, flatter cut surface. For products requiring high precision, these knives can produce finer cuts, avoiding defects such as scratches and burrs. A rough cutting surface can generate uneven cutting forces, resulting in a rough surface. This not only affects product quality but can also lead to increased rework and scrap.
knive stability during the cutting process is crucial for machining accuracy. A smooth cutting surface ensures more even cutting force, reducing unnecessary vibration and fluctuations, and ensuring a more stable cutting process. This results in smoother cut materials and better cutting results. A rough cutting surface can lead to uneven cutting forces, potentially causing knive vibration, which not only affects cutting quality but also increases machine strain.
For manufacturers, choosing high-finish cutting knives can not only improve production efficiency, but also ensure product quality, ultimately bringing higher economic benefits and market competitiveness to the company.
About the industry slitting knives problem，please contact Shen Gong Tungsten steel.
Gong Team :Howard@scshengong.com
Post time: Aug-11-2025
