外圆车削背吃刀量选择表

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1、车削切削用量选取参考表车削切削用量选取参考表外圆车削背吃刀量选择表（端面切深减半）外圆车削背吃刀量选择表（端面切深减半）轴 径长 度 100100250250500500800800120012002000 半精精车半精精车半精精车半精精车半精精车半精精车 100.80.20.90.210.3 10180.90.20.90.310.31.10.3 183010.310.31.10.31.30.41.40.4 30501.10.310.31.10.41.30.51.50.61.70.6 50801.10.31.10.41.20.41.40.51.60.61.80.7 801201.10.41.2

2、0.41.20.51.40.51.60.61.90.7 1201801.20.51.20.51.30.61.50.61.70.720.8 1802601.30.51.30.61.40.61.60.71.80.820.9 2603601.30.61.40.61.50.71.70.71.90.82.10.9 3605001.40.71.50.71.50.81.70.81.90.92.211、粗加工，表面粗糙度为Ra5012.5时，一次走刀应尽可能切除全部余量。 2、粗车背吃刀量的最大值是受车床功率的大小决定的。中等功率机床可以达到810mm。高速钢及硬质合金车刀车削外圆及端面的粗车进给量高速钢及硬

3、质合金车刀车削外圆及端面的粗车进给量工件材料车刀刀杆尺寸 (mm)工件 直径 (mm)切 深 3355881212进给量f mm/r碳素结构 钢、合金 结构钢、 耐热钢1625200.30.4400.40.50.30.4600.50.70.40.60.30.51000.60.90.50.70.50.60.40.54000.81.20.710.60.80.50.62030 2525200.30.4400.40.50.30.4600.60.70.50.70.40.61000.810.70.90.50.70.40.74001.21.411.20.810.60.90.40.6铸铁及铜 合金162540

4、0.40.5600.60.80.50.80.40.61000.81.20.710.60.80.50.740011.411.20.810.60.82030 2525400.40.5600.60.90.50.80.40.71000.91.30.81.20.710.50.84001.21.81.21.611.30.91.10.70.91、断续切削、有冲击载荷时，乘以修正系数：k=0.750.85 。2、加工耐热钢及其合金时，进给量应不大于1mm/r。 3、无外皮时，表内进给量应乘以系数：k1.1。 4、加工淬硬钢时，进给量应减小。硬度为HRC45-56时,乘以修正系数:0.8， 硬度为HRC57-6

5、2,乘以修正系数:k=0.5。Generated by Foxit PDF Creator Foxit Software http:/ For evaluation only.按表面粗糙度选择进给量的参考值按表面粗糙度选择进给量的参考值工件材料粗糙度等级 （Ra）切削速度 （m/min）刀尖圆弧半径 0.512进给量f mm/r碳钢及合金碳钢105500.30.50.450.60.550.7500.40.550.550.650.650.752.5500.180.250.250.30.30.4500.250.30.30.350.350.52.51.25500.10.110.150.150.225

6、01000.110.160.160.250.250.351000.160.20.20.250.250.35铸铁及铜合金105不限0.250.40.40.50.50.652.50.150.250.250.40.40.62.51.250.10.150.150.250.20.35注：适用于半精车和精车的进给量的选择车削切削速度参考数值表车削切削速度参考数值表加工 材料硬度背吃 刀量 p (mm)高速钢刀具硬质合金刀具陶瓷(超硬材料)刀具未涂层涂层v (m/min)f(mm/r)v(m/min)f(mm/r)材料v (m/min)f (mm/r)v(m/min)f(mm/r)说明焊接式可转位易 切 碳

7、 钢低 碳100200155-900.18-0.2 1852402202750.18YT15320-410 0.18550-7000.13 切削条件好，可用 冷压Al2O3陶瓷， 较差时宜用 Al2O3TiC热压混 合陶瓷。下同。441-700.41351851602150.5YT14215-2750.4425-5800.25 834-550.51101451301700.75YT5170-2200.5335-4900.4中 碳1752251520.21652000.18YT153050.185200.13 4400.41251500.5YT142000.43950.25 8300.51001

8、200.75YT51600.53050.4碳 钢低 碳100200143-460.18140-150 170-1950.18YT15260-290 0.18520-5800.13434-330.4115-125 135-1500.5YT14170-1900.4365-4250.25 827-300.588-100105-1200.75YT5135-1500.5275-3650.4中 碳175225134-400.18115-130 150-1600.18YT15220-240 0.18460-5200.13 423-300.490-100115-1250.5YT14145-1600.4290-

9、3500.25 820-260.570-7890-1000.75YT5115-1250.5200-2600.4高 碳175225130-370.18115-130 140-1550.18YT15215-230 0.18460-5200.13 424-270.488-95105-1200.5YT14145-1500.4275-3350.25 818-210.569-7684-950.75YT5115-1200.5185-2450.4合 金 钢低 碳125225141-460.18135-150 170-1850.18YT15220-235 0.18520-5800.13 432-370.4105

10、-120 135-1450.5YT14175-1900.4365-3950.25 824-270.584-95105-1150.75YT5135-1450.5275-3350.4中 碳175225134-410.18105-115 130-1500.18YT15175-200 0.18460-5200.13 426-320.485-90105-1200.4-0.5YT14135-1600.4280-3600.25 820-240.567-7382-950.5-0.75YT5105-1200.5220-2650.4高 碳175225130-370.18105-115 135-1450.18YT1

11、5175-190 0.18460-5200.13 424-270.484-90105-1150.5YT14135-1500.4275-3350.25 817-210.566-7282-900.75YT5105-1200.5215-2450.4高强 度钢225350120-260.1890-105115-1350.18YT15150-185 0.18380-4400.13300HBS时宜用 W12Cr4V5Co5及 W2Mo9Cr4VCo8415-200.469-8490-1050.4YT14120-1350.4205-2650.25 812-150.553-6669-840.5YT590-10

12、50.5145-2050.4高速 钢200225115-24 0.13-0.18 76-10585-1250.18YW1,YT15115-160 0.18420-4600.13加工W12Cr4V5Co5 等高速钢时宜用 W12Cr4V5Co5及 W2Mo9Cr4VCo8412-20 0.25-0.460-8469-1000.4YW2,YT14 90-1300.4250-2750.2589-150.4-0.546-6453-760.5YW3,YT5 69-1000.5190-2150.4不 锈 钢奥 氏 体135275118-340.1858-10567-1200.18YG3X,YW1 84-6

13、00.18275-4250.13225HBS时宜用 W12Cr4V5Co5及 W2Mo9Cr4VCo8415-270.449-10058-1050.4YG6,YW1 76-1350.4150-2750.25 812-210.538-7646-840.5YG6,YW1 60-1050.590-1850.4 马 氏175325120-440.1887-14095-1750.18YW1,YT15120-260 0.18350-4900.13275HBS时宜用 W12Cr4V5Co5及415-350.469-1575-1350.4YW1,YT15100-1700.4185-3350.25Generat

14、ed by Foxit PDF Creator Foxit Software http:/ For evaluation only.体W2Mo9Cr4VCo8 812-270.555-9058-105 0.50.75YW2,YT14 76-1350.5120-2450.4灰铸 铁160260126-430.1884-135100-165 0.18-0.25 YG8,YW2130-190 0.18395-550 0.13-0.25190HBS时宜用 W12Cr4V5Co5及 W2Mo9Cr4VCo8417-270.469-11081-1250.4-0.5105-1600.4245-3650.25

15、-0.4 814-230.560-9066-1000.5-0.7584-1300.5185-2750.4-0.5可锻 铸铁160240130-400.18120-160 135-1850.25YW1,YT15185-235 0.25305-365 0.13-0.25 423-300.490-120105-1350.5YW1,YT15135-1850.4230-2900.25-0.4 818-240.576-10085-1150.75YW2,YT14105-1450.5150-2300.4-0.5铝合 金301501245-3050.18550-610max0.25YG3X,YW1365-915 0.075-0.15金刚 石 刀 具p0.13-0.4 4215-2750.