高速钢钻头钻孔的进给量表.doc

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1、高速钢钻头钻孔的进给量表钻头直径（mm）钢σb/MPa铸铁、铜及铝合金硬度　HBW＜800800~1000＞1000≤200＞200进给量f(mm/r)≤20.05~0.060.04~0.050.03~0.040.09~0.110.05~0.07＜2－40.08~0.100.06~0.080.04~0.060.18~0.220.11~0.13＜4－60.14~0.180.10~0.120.08~0.100.27~0.330.18~0.22＜6－80.18~0.220.13~0.150.11~0.130.36~0.

2、440.22~0.26＜8－100.22~0.280.17~0.0210.13~0.170.47~0.570.28~0.34＜10－130.25~0.310.19~0.230.15~0.190.52~0.640.31~0.39＜13－160.31~0.370.22~0.280.18~0.220.61~0.750.37~0.45＜16－200.35~0.430.26~0.320.21~0.250.70~0.860.43~0.53＜20－250.39~0.470.29~0.350.23~0.290.78~0.960.

3、47~0.57＜25－300.45~0.550.32~0.400.27~0.330.9~1.10.54~0.66＜30－600.60~0.700.40~0.500.30~0.401.0~1.20.70~0.80