Yes, fine blanking can be applied to slightly curved surfaces, but with limitations. Fine blanking is an advanced process typically used for high-precision, flat parts like gears, levers, and structural components that require smooth, burr-free edges. However, for parts with moderate curvature, careful adjustments to tooling and material thickness can sometimes allow fine blanking to achieve satisfactory results. For intricate curved designs, other techniques like 3D forming or progressive stamping might be more effective.