常用材料折弯系数表大全.docx
常用材料折弯系数表大全饭金的展开长度和镀金的厚度、折弯半径、折弯角度，以及镀金材料属性(通过Y和K因子来表示)有关系。首先介绍Y因子和K因子：2)Y因子是根据折弯中线相对于银金厚度计算出来的比值，Y因子公式：Y=K*(2)oProe中Y因子默认为0.5。像金展开计算公式：如图2中镀金的展开长度L=L1+L2+L3L2=(2*R+Y*T)90其中兀=3.1415,R为镀金内侧折弯半径，T为镀金厚度，6为折弯角度(单位度)图2常用材料Y因子和K因子数值：材料：软黄铜、铜，Y因子：055,K因子：0.35。材料：硬黄铜、铜、软钢、铝，Y因子：064,K因子：0.41。材料：硬铜、皆铜、冷轧钢、弹簧钢，Y因子：071,K因子：0.45。常用材料折弯系数表（详）TV一冷金比钢板SPCe（电镀锌板SECC）角度0.6081.012152.025303.54.04550最短尺寸备注V4900.91.428120071500.2V6901.5句24.51200.70.861.0150020.304V790161.821245120080.9101500.30.30.3V8901.6Hbd2.55.530030.340.40.545060.7OS1.060101.1131.5120080.91.11.3150030.30.20.5VlO902.73.271201.31.61500.50.5V12902.8b44.18.5300.50.60.7451.01.315601.72241201.41.7201500.50.60.7V14904.3101202.11500.7V1690Id5.0111202.2150OSV18904.6131202315008V2090485.16.614120233.3150081.1V259064E317.51202331341501.0101-2V32908.222.01204.01501.4TV一冷轧钢板SpCe（电镀锌扳SECC）角度060.81012152.02.53035404.55.0最短尺寸备注V4090LdId281204.3461501.51.6TV二.铝板L2Y2材料0.60.81.01.21.52.02.53.03.5404.55.0最短尺寸备注V41.42.8V64.5V71.61.85V802.43.15.5VlO2.43.27V12回8.5V143210V163.2R11V184.813V204.814V254.85.46.017.5V32636.9220TV三、铜板角度0.60.810121.52.02.53.035404.55.0最短尺寸备注9028120150注：以上折弯系数（K）是在折弯内角（R）为0.5-1.0左右时的侧量值，当折弯内角改变时，系数改变,一般,内角增大,系数增大。针对现有材料测试折弯系数数据如下:料厚槽宽铁料（SPCC/SECC）折弯系数不锈钢铝料（ALH加弯系数45°90°135°90°45°90°135°0.64Rl=1.2R0.2=1.0Rl=1.2R0.2=1.00.860.351.60.251.060.61.80.41.850.61.80.251.241.95(HCR025)80.752.2/2.02.250.752/1.90.51.4V82.41.580.92.52.752.30.51.662.5582.652.0123.4/3.33.553.1/3.1512.3123.8164.02.5164.5/4.21.154.21.152.9124.6164.83.016?/5.14.75/4.81.553.2/3.4Rl,5.2/5.534.0Rl,6.74.5Rl,7.36.0R4,9.78.0R4,14.258.5R4,15.29.0V5016.7热镀锌板系数（由样开组于2002-6-17提供）1.01.81.52.552.03.35铜排折弯系数:V12V16V25V32V602.0铜板3.8(R3)3.0铜板5.3(R3)4.0铜板6.4(R3)5.0铜板7.9(R3)8.16.0铜板9.1(R4)8.0铜板12.5(R4)10.0铜板16.215.0铜板22.415.4铜板23.6覆铝锌板系数1.01.751.22.21.52.451.62.82.03.35说明：计算展开长度时,所有尺寸均以外皮计.每折一道弯,便减去一个折弯系数.
