高速钢钻头扩孔、钻孔的切削用量(共6页).doc

精选优质文档-倾情为你奉上高速钢钻头扩孔、钻孔的切削用量高速钢钻头扩孔、钻孔的切削用量 (mm/r)工件材料铸铁钢、铸钢铝、铜切削用量扩通孔( =1018m/min)沉孔( =812m/min)扩通孔( =1020m/min)沉孔( =814m/min)扩通孔( =3040m/min)沉孔( =2030m/min)扩孔钻直径(mm)10150.150.20.150.20.120.20.080.10.150.20.150.215250.20.250.150.30.20.30.10.150.20.250.150.225400.250.30.150.30.30.40.150.20.250.30.150.240600.30.40.150.30.40.50.150.20.30.40.150.260