Introduction
Nickel strip is a high-conductivity metal material manufactured through precision coil slitting, where wide raw coils are slit into narrow, dimensionally consistent strips. Typically 0.1–0.5 mm thick, finished nickel strips serve as critical conductive components across lithium battery pack assembly, consumer electronics, energy storage systems and other new energy sectors, supporting functions like tab interconnection, busbar fabrication and electrical connection. Shear knife durability directly dictates slitting line uptime, total tooling costs and long-term cut quality consistency.
As metal slitting production scales and line speeds continue to accelerate, premature blade wear and frequent tool changeovers remain a persistent pain point in nickel strip processing, causing unplanned downtime and driving up per-unit tooling expenses.
Key Causes of Shortened Shear Knife Life in Nickel Strip Slitting
1. Adhesive wear and work-hardening effect
Nickel’s high ductility causes built-up edge and material adhesion on the cutting tip during slitting. Combined with the material’s inherent work-hardening behavior, this gradually erodes edge sharpness, increases burr height and degrades cut consistency over extended production runs.
2. Insufficient blade substrate performance
Standard tool steels and conventional carbide grades fail to deliver the required balance of toughness and wear resistance for continuous nickel strip slitting. Micro-chipping and edge deformation occur prematurely, shortening the effective service cycle of the slitter knives.
3. Misaligned process parameters and machine conditions
Incorrect knife clearance, mismatched cutting speeds, unstable material tension and machine runout all amplify mechanical stress on the cutting edge. Even high-grade shear knives suffer accelerated wear without proper setup and routine maintenance.
Shengong Ultra-Fine Grain Carbide Shear Knives
Built on our full-stack manufacturing capability from powder to finished blade, SG develops application-specific slitter knives optimized for nickel strip slitting operations.
Our knives are manufactured from ultra-fine grain tungsten carbide with a hardness of 92–93 HRA and TRS ≥ 4500 MPa, achieving an optimal balance of wear resistance and edge toughness. Our proprietary precision grinding process produces a mirror-finish cutting edge that minimizes material adhesion and maintains clean, low-burr cuts throughout extended production.
All solutions are fully customizable to match strip thickness, slitter specifications and production speed requirements, ensuring consistent performance under real-world operating conditions.
Precision Metal Slitting & Industrial Cutting Knife Portfolio
Our carbide shear knives for nickel strip represent a core product line within Shengong’s precision metal slitting tool portfolio, engineered for high-accuracy processing of nickel and other non-ferrous metal coils. These solutions serve customers across lithium battery assembly, consumer electronics, energy storage and new energy manufacturing sectors.
Shengong also offers a complete lithium battery cutting range covering separator film and electrode sheets, helping battery and pack manufacturers to reduce total knife costs, improve line stability and sustain reliable production output.
Post time: Aug-15-2026
