Air bending vs bottoming vs coining: cost, accuracy, and tooling wear

Outline

• Define air bending, bottoming, and coining in shop terms.
• Compare angle repeatability, tonnage, surface marking, and tooling wear.
• Explain why K-factor ranges differ by process.
• Add decision guidance for prototype, production, and cosmetic stainless work.

Internal-link targets

• K-factor calculator
• Press brake tonnage calculator
• Reverse K-factor calculator

FAQ

Is coining the most accurate process?

Planned answer: it can control angle tightly, but it also requires high tonnage and can mark material or shorten tooling life.