Achievable surface quality with standard radius Select the maximum permissible corner radius, workpiece profile, system rigidity and chip control

Achievable surface quality with standard radius Select the maximum permissible corner radius, workpiece profile, system rigidity and chip control. The larger the corner radius, the better the surface quality that can be achieved. A Theoretical RMS values depending on the feed rate and insert radius Feed ranges depending on corner radius and type of machining Nose Radius in Round insert 0 in 16 63 RMS in microinches 125 250 320 1280 Medium to rough machining Fine to medium machining Feed in inches Feed in inches 0.0075 0.002 0.003 0.005 0.001 0.006 0.015 0.003 0.004 0.007 0.009 0.003 0.009 0.031 0.004 0.006 0.009 0.012 0.015 0.010 0.024 0.004 0.012 0.047 0.008 0.011 0.015 0.019 0.014 0.033 0.008 0.016 0.062 0.013 0.017 0.021 0.043 0.016 0.039 0.093 0.017 0.021 0.026 0.052 0.020 0.047 0.250 0.008 0.012 0.019 0.024 0.008 0.024 0.312 0.009 0.014 0.022 0.028 0.009 0.028 0.375 0.010 0.016 0.025 0.031 0.039 0.010 0.031 0.500 0.017 0.027 0.035 0.043 0.016 0.031 0.625 0.020 0.031 0.040 0.050 0.100 0.020 0.039 0.750 0.035 0.044 0.056 0.116 0.024 0.049 1.000 0.050 0.062 0.131 0.028 0.059 A Theoretical Ra / Rz values depending on the feed rate and corner radius Feed ranges depending on corner radius and type of machining Corner radius mm Round insert 0 mm 0.4 / 1.6 1.6 / 6.3 Ra / Rz in pm 3.2 / 12.5 1 6.3 / 25 8 / 32 32 / 100 Medium machining to roughing Finishing to medium machining Feed f in mm Feed f in mm 0.2 0.05 0.08 0.13 0.04-0.15 0.4 0.07 0.11 0.17 0.22 0.07-0.22 0.8 0.10 0.15 0.24 0.30 0.38 0.25-0.60 0.10-0.30 1.2 0.19 0.29 0.37 0.47 0.35-0.85 0.20-0.40 1.6 0.34 0.43 0.54 1.08 0.40-1.00 2.4 0.42 0.53 0.66 1.32 0.50-1.20 6 0.20 0.31 0.49 0.62 0.20-0.60 8 0.23 0.36 0.56 0.72 0.23-0.70 10 0.25 0.40 0.63 0.80 1.00 0.25-0.80 12 0.44 0.69 0.88 1.10 0.40-0.80 16 0.51 0.80 1.01 1.26 2.54 0.50-1.00 20 0.89 1.13 1.42 2.94 0.60-1.25 25 1.26 1.58 3.33 0.70-1.50 Same clamp set is used for both DN.. 43.. and DN..44.. size inserts A 451 Technical information Turning WALTER Valenite Usage information Surface quality