Parts for ToolsTechnicalReference User’s Guide - Technical Reference Tu r n i n g To o l s Compensations for CNMG/WNMG -SW / -FW Compensations ④ Tool offsets (Compensations for X- and Z-axis) Match the insert approach angle and the insert style to find the value and compensate the machining program for the insert radius. *This compensation procedure will not be necessary if the insert is compensated with the built-in tool presetter after insert replacement. DNMG-SW/-FW ( Type J) Nose X-axis Z-axis Radius direction direction R0.4 0.24 0.03 R0.8 0.23 0.04 R1.2 0.12 0.03 TNMG-SW/-FW (Type J) TNMG-SW/-FW ( Type G ) TNM G - S W/- FW ( Type F ) Nose X-axis Z-axis Nose X-axis Z-axis Nose X-axis Z-axis Radius direction direction Radius direction direction Radius direction direction R0.4 0.24 0.04 R0.4 0.24 0.02 R0.4 0.02 0.24 R0.8 0.21 0.05 R0.8 0.21 0.02 R0.8 0.02 0.21 R1.2 0.16 0.04 R1.2 0.15 0.02 R1.2 0.02 0.15 Compensations ⑤ Program compensations for tapered surface (proceed after ④ ) To machine tapered surfaces with DNMG or TNMG-SW/-FW insert, compensate both the x-axis and z-axis positions. Since these inserts are commonly used for profiling, to machine a tapered surface with a gradual reduction in diameter, the z-axis position has to be compensated in the negative direction. Z-axis to becompensated(reduction inX axis (+)diameter)Z-axis to becompensated(increase indiameter) Taper angle α Z axis (+) (-) (+) Compensations for x- and z-axes when using DNMG or TNMG-SW/-FW Match the insert nose radius and the angle of the surface taper to find the value in below to compensate the x-axis and/or z-axis positions. For DNMG-SW/-FW (Type J) X-axis compensation values for plus-tapered surface (increase in diameter) Nose Taper angle α ( θ ) radius (mm) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 R0.4 0 -0.01 -0.01 -0.01 -0.01 -0.02 -0.03 -0.04 -0.06 -0.08 -0.10 -0.14 -0.19 -0.20 -0.20 -0.19 -0.19 -0.19 0 R0.8 0 0.01 0.02 0.02 0.03 0.03 0.02 0.01 -0.00 -0.02 -0.05 -0.09 -0.15 -0.17 -0.15 -0.13 -0.12 -0.11 0 R1.2 0 0.02 0.04 0.05 0.06 0.07 0.07 0.06 0.04 0.02 -0.02 -0.09 -0.17 -0.19 -0.16 -0.14 -0.13 -0.15 0 Z-axis compensation values for minus-tapered surface * Match the taper angle and insert nose radius to (reduction in diameter) find the value in Table 2 and compensate the NCprogram by either adding or deducting the value. Nose Taper angle α ( θ )radius Example: (mm) -25 -20 -15 -10 -5 Tapering a surface of +45° (increase in diameter) R0.4 0.33 0.34 0.34 0.34 0.34 with a R0.8 mm insert. R0.8 0.30 0.32 0.33 0.34 0.34 Current NC program: X100 R1.2 0.33 0.35 0.38 0.40 0.40 Compensation value: -0.02Parameter after compensation: X99.98 L034 www.tungaloy.com