±0.01mm (±0.0004 inches) under optimal conditions with highly precise equipment, tooling, fixtures, and material/environment control. However, in practical production environments, the dimensional tolerance for stamped/pressed parts is more commonly controlled within the range of:
±0.05mm (±0.002 inches) to ±0.1mm (±0.004 inches) To achieve even higher precision, such as ±0.02mm (±0.0008 inches) for certain high-precision components, it requires a concerted effort to control and optimize every aspect of the stamping process chain, including:
● Highly rigid and precise stamping presses
● High-accuracy tooling and dies
● Automated feeding systems
● In-line inspection and measurement
● Stringent control of material properties and environmental conditions (temperature, humidity, etc.)
● Such ultra-high precision stamping processes tend to be more costly and are typically only implemented when absolutely necessary, as most applications can be adequately served by the more common tolerance range of ±0.05mm to ±0.1mm.