螺纹加工方法(外螺纹)

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1、螺纹加工方法(外螺纹)外螺纹右螺纹左螺纹右手刀柄左手刀柄■切深量的标准·下表所示是ISO时公制螺纹加工时的切深量标准。·使用金属陶瓷刀具材料以及切削不锈钢时，切入次数比下表所示的次数增加2-3次。■公制螺纹P(螺距)0.751.001.251.501.752.002.503.003.504.004.505.00h10.460.610.770.921.071.231.531.842.152.452.763.07h20.350.470.590.700.820.941.171.411.651.872.112.35r(刀尖半径)0.110

2、.140.180.220.250.290.360.430.500.580.650.72切入次数10.180.200.200.250.250.250.300.300.350.350.400.4520.130.150.180.200.200.250.250.250.300.300.350.4030.100.100.120.150.200.200.200.250.250.250.300.3540.050.100.120.150.150.150.200.200.200.250.250.3050.060.100.100.120.150.15

3、0.200.200.250.250.2560.050.070.100.100.100.150.200.200.200.2570.050.080.100.150.150.200.200.2080.050.100.100.150.150.150.2090.080.100.100.150.150.20100.050.090.100.100.150.15110.050.100.100.100.10120.050.100.100.10130.050.100.07140.060.05注1第一次切入是用刀片尖r切削，所以切削力集中在刀尖上，为防

4、止刀尖的损伤，规定最大的切深量为半径r的1.5～2倍(最大为0.4～0.5mm)。螺纹加工方法(内螺纹)内螺纹右螺纹左螺纹右手刀柄左手刀柄■切深量的标准·右表所示是ISO公制螺纹加工时的深量标准。·使用金属陶瓷刀具材料以及切削不透明时，切入次数比右表所示的次数增加2～3次。●公制螺纹P(螺距)0.751.001.251.501.752.002.503.003.504.004.505.00h10.430.580.720.871.011.151.441.732.022.312.602.89h20.380.510.630.760.881

5、.011.211.511.772.022.282.53r(刀尖半径)0.050.070.090.110.130.140.180.220.250.290.320.36切入次数10.100.150.180.200.230.250.250.250.300.300.350.4020.100.130.150.200.200.200.220.250.250.250.300.3530.100.100.120.150.200.150.200.220.220.250.250.3040.080.100.120.150.150.150.200.200.

6、200.250.250.2550.050.050.100.100.100.150.150.200.200.230.250.25060.050.050.070.080.100.100.150.200.200.200.2570.050.100.100.120.150.200.200.2080.050.100.100.150.150.150.2090.070.100.100.150.150.20100.050.090.100.100.150.15110.050.100.100.100.10120.050.080.100.10130.05

7、0.100.09140.050.05注1第一次切入是用刀片刀尖r切削，所以切削力集中在刀尖上，为防止刀尖的损伤，规定最大切深量为半径r的1.5～2倍（最大为0.4～0.5mm）。■切削方式直接切入法单向切入法·一般的螺纹切削。·加工螺纹螺距4以下。·用于工件刚性低易振动的场合。·用于切削不锈钢等难加工材料。·加工螺纹螺距4以上。