Deep Drawing Calculators Three quick tools for DFM review: press tonnage, blank size with draw ratio, and blank weight — using AUNOV measured limiting draw ratios. Direct answer: Use press tonnage to size the press (blanking force plus drawing force, times a safety factor), blank diameter to check the draw ratio against the material’s limiting…
Deep Drawing Force & LDR Calculator Enter the material and geometry to get the maximum draw ratio, estimated drawing force, and safe wall-thinning limit — based on AUNOV measured LDR data, not generic ranges. Material DC04 (low-carbon steel)304 stainless steel5052 (5xxx aluminium)6061-T4 (6xxx, shallow only)Other / custom UTS (MPa) — auto-filled, editable Blank diameter D₀…
The limiting draw ratio (LDR) is the maximum blank-diameter-to-punch-diameter ratio a sheet metal can be drawn in a single operation before it tears. The limiting draw ratio (LDR) is the largest ratio of blank diameter to punch diameter a sheet can survive in a single draw without fracturing: LDR = Db ÷ dp. Published first-draw…
