卷制弯头展开计算
夹角α(角度)9.0
弯头半径450.0
圆筒外径φ377.0
圆筒厚度δ 2.0
圆周等分数16.0
对称下料
X1=0.0Y1=101.0 X2=73.6Y2=98.7 X3=147.3Y3=92.3 X4=220.9Y4=82.6 X5=294.5Y5=71.3 X6=368.2Y6=59.9 X7=441.8Y7=50.3 X8=515.4Y8=43.8 X9=589.0Y9=41.6