钣金折弯计算公式表

长度L130长度L250板厚t3角度α°90半径r0K因子k0.45扣除值BD3.88扣除（BD）V槽1.762.182.6102.8103.4123.9144.3165165.5206.8257.7258.63210.13212.540扣除（BD）V槽2.182.5103123.6164.7165.8207.3258.732折弯扣除公式注：角度范围大于0小于180°4.545.13.03.25.04.02.62.63.81.21.51.64.02.02.53.01.21.51.61.91.01.3板厚（T)R角常用扣除值参考碳钢（SPCC、SPHC、Q235等）R角2.0板厚（T)11.31.61.61.0不锈钢（SUS304等）2.31.92.52.32.62.63.24.58.06.0445.15.16.4常用碳钢选用下模时以6倍的板厚为准编辑绿色部分得出BD值104011.640一般情况下不锈钢T大于3毫米用下模时以8倍的板厚为准（铁素体不锈钢按碳钢计算）5.06.06.46.4最低折弯高度(H)4.55.77791011.51212.217.518262733K值0.290.310.3450.4820.360.3880.3850.352折弯扣除公式注：角度范围大于0小于180°0.3850.3520.360.3880.4820.310.345K值0.29常用扣除值参考碳钢（SPCC、SPHC、Q235等）K值不锈钢（SUS304等）0.4620.450.4630.450.460.4320.450.4660.450.4650.4270.4570.4340.497常用碳钢选用下模时以6倍的板厚为准0.350.3340.334一般情况下不锈钢T大于3毫米用下模时以8倍的板厚为准（铁素体不锈钢按碳钢计算）0.35