工件材料 | 牌号或硬度 | 切削用量 | 钻头直径 | |||
1~6 | 6~12 | 12~22 | 22~50 | |||
铸铁 | HB160-200 | m/min | 16~24 | |||
mm/r | 0.07~0.12 | 0.12~0.2 | 0.2~0.4 | 0.4~0.8 | ||
HB200-241 | m/min | 10~18 | ||||
mm/r | 0.05~0.1 | 0.1~0.18 | 0.18~0.25 | 0.25~0.4 | ||
HB300-400 | m/min | 5~12 | ||||
mm/r | 0.03~0.08 | 0.08~0.15 | 0.15~0.2 | 0.2~0.3 | ||
钢 | 35、45 | m/min | 8~25 | |||
mm/r | 0.05~0.1 | 0.1~0.2 | 0.2~0.3 | 0.3~0.45 | ||
15Cr、20Cr | m/min | 12~30 | ||||
mm/r | 0.05~0.1 | 0.1~0.2 | 0.2~0.3 | 0.3~0.45 | ||
合金钢 | m/min | 8~18 | ||||
mm/r | 0.03~0.08 | 0.08~0.15 | 0.15~0.25 | 0.25~0.35 | ||
铝 | 钻头直径 | 3~8 | 8~25 | 25~50 | ||
钝铝 | m/min | 20~50 | ||||
mm/r | 0.03~0.2 | 0.06~0.5 | 0.15~0.8 | |||
铝合金 (长切削) | m/min | 20~50 | ||||
mm/r | 0.03~0.25 | 0.1~0.6 | 0.2~1.0 | |||
铝合金 (短切削) | m/min | 20~50 | ||||
mm/r | 0.03~0.1 | 0.05~0.15 | 0.08~0.36 | |||
铜 | 黄铜、青铜 | m/min | 60~90 | |||
mm/r | 0.06~0.15 | 0.15~0.3 | 0.3~0.75 | |||
硬青铜 | 钻头直径 | |||||
m/min | 1~6 | 6~12 | 12~22 | 22~50 | ||
mm/r | 0.05~0.15 | 0.12~0.25 | 0.25~0.5 |