车外圆镗内孔留磨量余量表（参考）淬火件镗孔车孔后进行内孔磨加工余量表D6-1011-2021-3030-5050-120120-180180-260260-36010以下0.15-0.200.18-0.250.20-0.250.25-0.350.35-0.400.40-0.500.45-0.550.55-0.6510-250.17-0.200.20-0.300.22-0.270.27-0.370.35-0.450.40-0.500.45-0.550.55-0.65磨削长度（mm）25-5050-100100-1500.20-0.250.22-0.350.25-0.320.35-0.450.25-0.300.30-0.350.40-0.600.30-0.400.35-0.450.50-0.650.40-0.500.45-0.550.60-0.750.45-0.550.50-0.600.60-0.800.50-0.650.55-0.700.70-0.800.60-0.750.65-0.80150-200200-3000.45-0.600.55-0.700.65-0.800.70-0.900.80-0.950.60-0.750.75-0.900.75-0.950.80-1.00淬火件车外圆后进行磨外圆加工余量表D3-1011-2021-3031-5050-100100-180180-260260-360360以上50以下0.20-0.230.25-0.300.25-0.300.35-0.400.40-0.4550-1000.20-0.300.25-0.350.25-0.400.35-0.450.40-0.500.40-0.600.40-0.600.50-0.600.60-0.80磨削长度（mm）100-400400-800800-12000.50-0.700.40-0.650.35-0.600.50-0.600.40-0.550.45-0.600.80-1.000.45-0.600.50-0.650.70-0.850.50-0.600.55-0.650.70-0.850.55-0.700.60-0.800.80-0.900.60-0.750.60-0.800.75-0.900.60-0.850.80-1.000.90-1.10备注1）D－零件公称直径（mm）；2）未淬火各种材料按上表的70％计算余量；3）有沉角槽工件按上表125％计算余量；4）一般外圆磨槽子的加工余量不能超过0.35-0.40mm；5）平面磨的余量按外圆磨来留；6）端面靠的加工余量不能超过0.30-0.40mm；7）槽的磨量按内孔的加工余量来留；8）工件车镗加工后的粗糙度应为Ra3.2以上；9）铣刨加工的粗糙度应为Ra6.3以上。
