钻孔切削用量的选（1）高速钢钻头钻削不同材料的切削用量加工硬度钻头直径切削速d/mm钻头度V/螺旋钻尖角材料<33~66~1313~1919~25布氏洛氏(m/角/(°)min)进给量f/(mm/r)/(°)HBSHRB铝及铝合金45~105~621050.080.150.250.400.4832~4290~118铝高加及工性~12410~70600.080.150.250.400.4815~40118铝低加合工性~12410~70200.080.150.250.400.480~25118金镁及镁25~35合金50~90~5245~1200.080.150.250.400.48118锌合金80~10041~62750.080.150.250.400.4832~42118~0.2125~17571~88240.080.130.200.260.3225~351185C碳~0.5175~22588~98200.080.130.200.260.3225~35118钢0C~0.9175~22588~96170.080.130.200.260.3225~351180C合0.12~0175~22588~98210.080.150.200.400.4825~35118金.25C钢0.30~0175~22588~9815~180.050.090.150.210.2625~35118.65C工具钢19694180.080.130.200.260.3225~35118灰软120~15030~3090~118铸~8043~460.080.150.250.400.48铁中硬160~22080~9724~340.080.130.200.260.3214~2590~118可锻铸112~12620~3090~118铁~7127~370.080.130.200.260.32球墨铸190~22514~2590~118铁~98180.080.130.200.260.3215~25塑料——300.080.130.200.260.3211810~2090~118硬橡胶——30~900.050.090.150.210.26（2）硬质合金钻头钻削不同材料的切削用量进给量f/(mm/r)切削速度V/(m/min)加工材料拉强度抗σ硬度切削液HBSd/mmb/MPa5~1011~305~1011~3010003000.08~0.120.12~0.235~4040~45工具钢1800~19005000.04~0.150.05~0.088~1111~142300575<0.02<0.03<67~1010003000.08~0.120.12~0.235~4040~45非水溶性镍铬钢14004200.04~0.050.05~0.0815~2020~25切削油铸钢500~600——0.08~0.120.12~0.235~3838~40不锈钢————0.08~0.120.12~0.225~2727~35耐热钢————0.01~0.050.05~0.13~65~8干切或乳化灰铸铁——2000.2~0.30.3~0.540~4545~60液非水溶性切削230~3500.03~0.070.05~0.120~4025~45——油或乳化液合金铸铁——350~4000.03~0.050.04~0.088~2010~25可锻铸铁————0.15~0.20.2~0.435~3838~40干切或乳化黄铜————0.07~0.150.1~0.270~10090~100液铸造青铜————0.07~0.10.09~0.250~7055~75铝————0.15~0.30.3~0.8250~270270~300干切或汽油硬橡胶————0.2~0.430~60热固性树脂————0.04~0.160~90塑料————0.05~0.2530~60玻璃————手进4.5~4.7玻璃纤维复合材料————0.063~0.127198