75°
Corners (ineffective) External Diameter (effective)
Precautions when Using Wiper Inserts Cutting edge angle 93°
Indexable Insert
Taper (ineffective)
Z axis (+)
dimensions in mm
Face (effective)
Internal diameter (effective) Tool Program Correction Guide for DNMX Type Wiper Inserts (Compensation: mm) (1) Cutting edge position compensation (tool offset) in X and Z axes Cutting edge angle 93°
Z axis (+) ● Nose Radius Tip Diagram
Cutting edge angle 95°
Cutting edge angle 93°
Cutting edge angle 75°
The cutting edge position for this insert differs from standard ISO inserts and therefore requires dimensional correction in the X and Z axes as shown in the table on the right.
Z axis (+) External Turning
External Turning
X-axis
B
* T he X axis compensation is positive for internal boring.
(1) Z-axis compensation
Nose Radius
X direction Z direction
Z-axis
-0.14
-0.02
R0.4
-0.14
-0.02
R0.8
Wiper nose radius
X-axis
-0.1
-0.03
R1.2
(1) Z-axis compensation
Z-axis After tool offset Nose radius of general purpose insert X-axis
Cutting edge angle 93° (2) Tool compensation for corners (based on compensation in step (1) ) The nose radius must be corrected to prevent the insert from gouging the corner in the programmed tool path.
Wiper nose radius
(1) Z-axis compensation
Z-axis
After tool offset Nose radius of general purpose insert
Programmed nose radius
Wiper nose radius
R4.07 R4.0 + R0.07
After tool offset Nose radius of general purpose insert
Programmed nose radius Programmed nose radius = actual nose radius + radius compensation
Z axis (+)
Z axis (+)
R4.07
Example) To machine an R4.0 corner (using an R0.8 nose)
Radius compensation
R4.0 + R0.07
C
Z axis (+)
Programmed nose radius
Radius compensation
Nose radius contour of general purpose insert
Actual nose radius
R4.07
R4.0
Nose radius contour of general purpose insert
R4.0 + R0.07
Z axis (+)
Radius compensation
Actual nose radius
(1) Z-axis compensation Normal insert nose radius pro le after tool offset Wiper nose radius contour line Normal insert nose radius pro le after tool offset Wiper nose radius contour line
R4.0
D
Nose radius contour of general purpose insert
X-axis
Nose Radius
Gouging Radius compensation
Z-axis
0.02 +R0.04
R0.4
Wiper nose radius Normal insert nose radius pro le after tool offset Wiper nose radius contour line
R
0.03 +R0.07
R0.8
After tool offset Nose radius of general purpose insert
0.08 +R0.18
R1.2
S
(3) Tool compensation for tapers (based on compensation in step (1) )
Programmed nose radius
R4.07
R4.0 + R0.07 Tool paths for tapers leave gouging and unmachined surfaces with respect to the programmed tool path. Correct the normal direction as shown below.
Z axis (+)
Radius compensation
T
Actual nose radius
R4.0
Nose radius contour of general purpose insert
Example) To machine an R0.8 nose and 60°/-20° taper angle ( θ )
Compensation + indicates gouging Compensation - indicates unmachined surfaces
V
Normal insert nose radius pro le after tool offset Wiper nose radius contour line
Taper Angle ( θ )
Nose Radius
-20°
-25°
-15° -10° -5°
0.08 0.07 0.05 0.04 0.02
R0.4
W
0.09 0.08 0.06 0.05 0.02
R0.8
0.05 0.05 0.05 0.03 0.02
R1.2
Taper Angle ( θ )
Nose Radius
5° 10° 15° 20° 25° 30° 35° 40° 45° 50° 55° 60°
0°
65° 70° 75° 80° 85° 90°
R0.4 0.00 0.00 0.00 -0.01 -0.01 -0.01 -0.02 -0.02 -0.03 -0.03 -0.04 -0.05 -0.05 -0.05 -0.03 -0.02 -0.02 -0.01 0.00
R0.8 0.00 0.01 0.02 0.03 0.03 0.03 0.03 0.02 0.01 0.00 -0.02 -0.03 -0.05 -0.04 -0.03 -0.02 -0.01 0.00 0.00
R1.2 0.00 0.02 0.04 0.06 0.07 0.08 0.08 0.07 0.06 0.05 0.03 0.00 -0.03 -0.02 -0.01 0.00 0.01 0.00 0.00
B135
Dimensions in mm
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