鈑金k因子和折彎扣除參照表

1、已知扣除，反推k因子已知k因子，反推扣除(90)t板厚0.5t板厚1扣除1kk因子0.27746r折彎內(nèi)半徑1r折彎內(nèi)半徑0.2k因子計(jì)算K值等于0.546479折彎扣除1.650008用表說(shuō)明：紅色部分自動(dòng)計(jì)算得出。已知k因子，反推扣除(90-179)已知k因子，反推扣除(0-90)t板厚0.5t板厚1kk因子0.109kk因子0.2r折彎內(nèi)半徑0.2r折彎內(nèi)半徑0.2折彎角度120折彎角度120扣除值0.5417786扣除值0.96676163用表說(shuō)明：紅色部分自動(dòng)計(jì)算得出。A邊長(zhǎng)度 B邊長(zhǎng)度 板厚（T）展開(kāi)長(zhǎng)度(L)8020299.2藍(lán)色框自動(dòng)算出壓死邊折彎系數(shù)3.3藍(lán)色框自動(dòng)算出Sol

2、idWorks K因因子子輸輸入入值值及及折折彎彎系系數(shù)數(shù)表表材材料料厚厚度度V V折折彎彎扣扣除除K K因因子子值值備備注注材材料料厚厚度度V V折折彎彎扣扣除除K K因因子子值值備注冷冷軋軋板板0.60.6V4V41.101.100.1970.197不不銹銹鋼鋼0.50.51.001.000.1090.1090.80.8V6V61.501.500.1470.1470.80.81.401.400.220.221.01.0V4V41.601.600.310.311.01.01.701.700.250.25V6V61.801.800.1820.1821.21.2V7V72.002.000.260

3、.261.21.22.202.200.150.15V8V82.102.100.2040.2041.51.5V8V82.502.500.2490.2491.51.52.602.600.210.21V10V102.702.702.02.0V8V83.103.102.02.03.503.500.180.18V10V103.303.300.250.25V12V123.403.402.52.5V12V124.004.000.2770.2772.52.54.304.300.20.2V14V144.404.403.03.0V18V185.005.000.230.233.03.05.205.200.190.1

4、9A3A3板板3.23.2V18V185.205.203.53.5V20V205.805.80V25V256.106.104.04.0V24V246.606.600.2350.2354.04.06.806.800.2050.2054.54.57.407.404.54.57.607.605.05.0V24V248.008.000.2660.2665.05.08.508.500.2020.202V25V258.408.40V32V328.658.656.06.0V32V329.909.900.2650.2656.06.010.0010.000.220.22V40V4010.2010.20鋁鋁板板0

5、.80.81.01.01.21.21.51.52.252.252.02.03.153.152.52.53.853.85V20R3V20R34.454.453.03.04.854.854.04.0V20V206.456.455.05.0V25V257.757.756.09.709.70注注：11以以上上K K因因子子值值以以折折彎彎內(nèi)內(nèi)半半徑徑0.20.2為為準(zhǔn)準(zhǔn). . 22當(dāng)當(dāng)R R內(nèi)內(nèi) / / T T 的的比比值值大大于于等等于于5 5時(shí)時(shí),K=0.5,K=0.5 33折折褶褶邊邊時(shí)時(shí),L=,L=毛毛尺尺寸寸減減去去板板厚厚的的0.4T0.4T . . 常常見(jiàn)見(jiàn)材材料料的的理理論論重重量量計(jì)

6、計(jì)算算公公式式及及舉舉例例鋼板= 7.85*厚度*面積 舉例: 長(zhǎng)1000*寬800*厚度2.0 (7.85*1*0.8*2= 12.56 kg)鋁板= 2.71*厚度*面積 舉例: 長(zhǎng)1200*寬750*厚度1.5 (2.71*1.2*0.75*1.5= 3.65 kg)圓管=0.02466*壁厚*(外徑-壁厚)*長(zhǎng)度 舉例:30*1.5*1000L (0.02466*1.5*(30-1.5)*1 =1.05kg)圓鋼=0.00617*直徑*直徑*長(zhǎng)度 (有的算0.00625)舉例:20*1000L (0.00617*20*20*1 =2.47kg)方鋼=0.00785*邊寬*邊寬*長(zhǎng)度舉例

7、:25*1000L (0.00785*25*25*1 =4.91kg)角鋼(角鐵) =0.00785*(邊寬+邊寬-邊厚)*邊厚*長(zhǎng)度舉例:等邊角鐵 25*3*1000L (0.00785*(25+25-3)*3*1= 1.11 kg K因子計(jì)算表K因子=折彎內(nèi)表面到中性面距離/板厚中性層彎曲半徑R=折彎內(nèi)圓角+r/t*t。注r/t=中性層位置系數(shù)K因子中性層系數(shù)=內(nèi)表面到中性面距離/材料厚度 注意啊，K因子并不等于折彎內(nèi)圓角/材料厚度，很多人講鈑金展開(kāi)有誤差都是從這引起的，r/t與K因子有個(gè)對(duì)應(yīng)關(guān)系的r/T 0.1 0.15 0.2 0.25 0.3 0.4 0.5 K 0.30 0.32

8、0.33 0.35 0.36 0.37 0.38 r/T 0.6 0.7 0.8 0.9 1 1.1 1.2K 0.39 0.40 0.408 0.414 0.42 0.425 0.43r/T 1.3 1.4 1.5 1.6 1.7 1.8 1.9 K 0.433 0.436 0.44 0.443 0.446 0.45 0.452 r/T 2.0 2.5 3 3.5 3.75 4 4.5K 0.455 0.46 0.47 0.473 0.475 0.476 0.478適用于無(wú)頂板的V形彎曲，適用材料為鋼板。冷板折彎拉伸系數(shù)表11.21.522.534563011.171.381.812.132

9、.663.44.535.32601.321.451.712.242.643.294.2856.5651.411.551.842.42.823.534.5967.06701.541.6922.613.073.844.996.537.68751.651.822.152.813.314.135.377.038.26801.751.942.2933.334.415.747.58.829022.22.63.3456.58.510951.781.952.313.023.554.445.777.558.881001.581.782.052.683.153.945.126.77.881051.41.541.8

10、22.382.83.54.555.9571101.241.371.612.112.483.14.035.286.211151.11.211.431.872.22.753.584.685.51200.971.071.261.651.942.433.154.134.851250.850.941.111.451.712.132.773.634.261300.750.820.971.271.491.872.433.183.741350.650.720.851.111.311.632.122.783.21400.560.610.730.951.121.41.822.382.791450.480.530.630.820.961.211.572.052.411500.410.450.530.690.811.011.321.732.031550.330.350.430.560.660.821.071.41.651600.26