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sepmaxEnoacppAill /l BR11.51.622.53.245677.5891010.51112131415161718206810131620253035404550556065707580859095100110120Simplified Chart of Bending Loads Corresponding to Thickness and LengthsataDitilsepmaxEnoitacppAataDcat-No.78E since2017Bending load: kN/m1211101.21.41.62.01.0108886959493912798785949391671371088869594917713710888695949196177137108887869thick and 3 m long can be obtained as follows. The standard width B is approx. 8t ≈ 25. The table indicates the corresponding necessary load per meter as 275 kN. Accordingly, the total necessary load is 825 kN (275 kN × 3 m).In this case, the internal diameter R of the bent sheet is 4 mm or larger.When the t-axis (mm) and the L-axis (m) represent plate thicknesses and lengths respectively, if two points on the t-axis and the L-axis are connected with a line, the point of the intersection on the central axis represents the load kN.The chart shows that the width of the standard bending die is eight times the plate thickness, and that a mild steel of 370 to 410 N/mm2 is bent to 90°.E.g.:When the plate is 1.2 mm thick and 2 m longPlate thickness t (mm)4.52.62.33.24.02752261771471181088878692842261861571271181089888343275226196177157137127118422353304265235216196177167157Work piece: SS400(tensile strength: 400 N/mm2)6.07.08.09.0539451382333304275245226206196186167794686598530480431402373343324304284814726647588539500461431412382363941843775706647608569530500471451971892824765716667628598569539F = Load (kN)t = Sheet length (mm)L = Bending length (mm)fs = Tensile strength (N/mm2)B = Lower die width(mm)R = Tip of upper die(mm)Soft brassSoft aluminumAluminum alloyStainless steelChromium molybdenum steelBending equation10.012.014.016.010799819418838247757356966675981471137318531275172611771618211811181520199110591442188310001363178512941687951117715408637941079141250 %50 %100 %170 %200 %DataTable of Standard Bending Loads (Unit: kN) 0.64939290.878594939 (Standard width of the lower die)Example: The load required to bend an steel plate 3.2 mm = B ≈ 8 t225