1、30.060.080.110.142040340.100.120.160.194060450.130.160.200.2460100580.160.230.240.321001506100.180.260.300.4015010150.280.360.400.551、切断直径大于60mm的实心材料,当切刀接近零件轴线0.5倍半径时,表中进给量应减小4050。2、加工淬硬钢时,当硬度50HRC时,表内数值应减小30,当硬度50HRC时,表内数值应减小50。硬质合金外圆车刀半精车的进给量(参考值) mm/r表面粗糙度Ra(m)切削速度范围c(m/min)刀 尖 圆 弧 半 径 r(mm)0.51.
2、02.0铸铁、青铜、铝合金5102.551.252.5不限0.250.40.40.50.50.60.150.250.40.60.100.150.150.20.20.35碳钢及合金钢500.30.50.450.60.550.70.40.550.550.650.650.70.180.250.250.30.30.40.30.350.10.110.150.150.22501000.110.160.160.250.250.351000.160.200.200.25r=0.5mm,用于1212以下刀杆,r1mm,用于3030以下刀杆,r2mm,用于3045及以上刀杆。硬质合金车刀粗车外圆及端面的进给量工件
3、材料刀杆尺寸直径背吃量(mm)3355881212进给f(mm/r)碳素结构钢、合金结构钢及耐热钢1625200.30.4400.40.5600.50.70.40.60.30.50.60.90.50.64000.81.20.71.00.60.82030250.81.00.70.90.40.71.21.41.01.2铸铁及铜合金0.50.81.01.40.50.90.91.31.21.81.21.61.01.30.91.11、加工断续表面及有冲击的工件时,表内进给量应乘系数K0.750.85;2、在无外皮加工时,表内进给量应乘第数K1.1;3、加工耐热钢及其合金时,进给量不大于1mm/r;4、加
4、工淬硬钢时,进给量应减小。当钢的硬度为4456HRC时,乘系数K=0.8;当钢的硬度为5762HRC时,乘系数K=0.5。5、可转位刀片的允许最大进给量不应超过其刀尖圆弧半径数值的80。不锈钢的铣削用量铣刀种类刀具材料铣削速度(m/s)进给速度(mm/s)立铣刀高速钢硬质合金0.250.330.671.670.501.25粗加工立铣刀0.300.420.751.25圆片、三面刃铣刀0.580.830.831.830.331面铣刀12.500.502.5硬质合金端面铣刀的铣削用量加工材料工序铣削深度铣削速度(m/min)每齿走刀量(mm/齿)钢粗24801200.20.4精0.510.050.2
5、901500.050.1540700.10.30.050.1铸铁25508080130铝及其合金3007000.10.450015000.050.03镗孔切削用量切削用量切削速度进给量mm/r粗镗20250.41.515300.350.71001500.51.53550100250半精镗20350.150.4515501002000.20.595135精镗D1级0.081001350.120.151504000.060.1D级0.15备注:当采用高精度的镗刀头镗孔时,切削余量较小,直径上不大于0.2mm,切削速度可提高一些,铸铁件为100150m/min,钢件为150250m?min,铝合金为
6、200400M/min,巴氏合金为250500m/min,每转走刀量可在0.030.1mm范围内。攻螺纹切削速度铜及钢2.551.55515常用螺纹的切削进给次数和背吃刀量mm公制螺纹螺距10152025303540牙深0649097412991624194922732598背吃刀量及切削次数1次070809122次04063次024次0165次016次0157次8次039次英制螺纹牙寸24181614108牙深0678090410161162135516262033及切削次数05011014013021017高速车三角螺纹时的走刀次数螺距(mm)1.52456走刀次数粗车235667精12高
7、速钢铰刀铰孔的切削用量钢及合金钢mm/r铰刀直径261.2581215250.81.5254012.1.8钻孔的进给量钻头直径D(mm)进给量(mm/r)30.0250.05366120.10.1812250.150.38250.380.62高速钢钻头扩孔、钻孔的切削用量(mm/r)钢、铸钢铝、铜扩通孔( =1018m/min)沉孔( =812m/min)( =1020m/min)( =814m/min)( =3040m/min)( =2030m/min)扩孔钻直径0.150.20.120.20.080.10.20.250.150.30.20.30.10.150.250.3采用硬质合金扩孔钻加
8、工铸铁时 。高速钢钻头加工铝件的切削用量钻头直径纯铝铝合金(长切削)铝合金(短切削)20500.030.20.050.250.030.13250.060.50.10.625500.150.80.210.080.36高速钢钻头加工钢件的切削用量牌号或硬度1612222250HB160-20016240.070.120.40.8HB200-24110180.180.250.250.4HB300-4005120.030.080.080.1535、458250.10.20.30.4515Cr、20Cr1230合金钢8180.150.250.250.35铝38钝铝铝合金(长切削)0.030.250.21
9、.0(短切削)铜黄铜、青铜60900.060.150.30.75硬青铜0.120.250.250.5铣削时的切削速度硬度HB切削速度(m/min)高速钢铣刀硬质合金铣刀高碳钢可锻铸铁铸钢12517517522522527527532532537537542510014014019019022022026026032011016016020020024024028010016020022524422140183615279217.51521361833122191512277.51812232436213015249184.510426012241827180300751507012560115
10、54904575366075135681206010553904568365475130601205510037803060458311015045901052108312072120681055375360600铣削加工常用切削速度 经验值(m/min)钢及其合金铣粗铣350500精铣20302040200300500800镗30404050150300钻孔扩孔通孔356025308113050铰孔6205075攻螺纹铣削加工每齿进给量推荐值(mm/z)工件材料工件材料硬度(HB)硬质合金高速钢端铣刀三面刃铣刀圆柱铣刀1500.200.40.200.350.150.300.120.200.040.200.030.180.100.15中、高碳钢1802202203000.150.50.150.40.070.200.070.150.040.20.030.150.10.200.050.121501800.120.30.100.200.070.180.030.100.20.350.10.250.080.20.070.20.020.08含C3合金钢1251701702202202802803200.010.1含C3合金钢3203800.1250.40.12
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