Quantifying Carbide Banding Severity in Tool Steels for Cell Stamping Dies
Quantifying tool steel carbide banding via ASTM E1268 stereology prevents micro-chipping and premature fracture in high-takt battery cell stamping dies.
Nickel Plated Steel D&I
Meaning
Sheet steel forming involves deep drawing and subsequent wall ironing to produce seamless, thin-walled metal cans. Battery cell production utilizes nickel plated steel d&i to manufacture the cylindrical casings that house lithium ion cells. This material combines the strength of steel with the chemical resistance of nickel.
The resulting cans are highly resistant to internal electrochemical oxidation. They are widely used for mass-producing the structural enclosures of standard consumer and automotive cells.
Material Advantage
Thin-gauge steel maintains high mechanical strength while allowing thin can walls that increase the cell’s internal volume. Using nickel plated steel d&i provides a protective barrier that prevents the electrolyte from reacting with the iron base. This protection is necessary to maintain cell capacity over thousands of cycles.
Manufacturing Step
Multi-stage press lines draw a metal disc and then iron the walls to reduce thickness without tearing the steel. The execution of nickel plated steel d&i requires precise control over sheet thickness and surface lubricants. These controls prevent wrinkling of the metal during the rapid drawing stages.
Quality Specification
Coating thickness measurements confirm that the nickel layer remains continuous and free of microscopic cracks after forming. Sourcing teams specify nickel plated steel d&i to ensure that the internal surfaces have the surface finish required for current collection. The can must exhibit high corrosion resistance under prolonged exposure to aggressive chemical solvents.