AUTOMOTIVE ASSEMBLY & STAMPING1 min reference noteAutomotive Sheet Metal Stamping Force, Press Tonnage & Die StressSource notes β linked publications and standards below; organisations and authors named there do not author or endorse this page.1. Sheet Metal Blanking TonnageCutting Force F (kN) = Perimeter (mm) Γ Thickness (mm) Γ Shear Strength (MPa) / 1000PEER-REVIEWED TEXTBOOK & JOURNAL CITATIONSSAE. (2018). SAE Manual for Sheet Metal Stamping. SAE International. [Access Reference]