B500
B500 Page 8 840D/828D SINUMERIK Operate
Notes
Turning Section 3
Unit
Table
Selection of the thread table
without
ISO metric
Whitworth BSW
Whitworth BSP
UNC
T
Tool name
T1
(Back-cut)
Back-cut depth Ø (abs) or back-cut depth
referred to X0 (inc)
mm
U1
Contour allowance
mm
U
Finishing allowance
mm
UX
Finishing allowance in X
mm
UZ
Finishing allowance in Z
mm
V
Constant cutting speed
m/min
VR
Retraction gap (inc)
mm
VX
(Relief cut)
Planar pass Ø (abs) or planar pass (inc)
mm
X0
(Back-cut)
Reference point Ø (abs)
mm
X1
(Relief cut)
Allowance in X Ø (abs) or allowance in X (inc)
mm
X1
(Metal re-
moval
Thread)
End point of the thread Ø (abs) or thread length
(inc)
mm
X1
(Taper
thread)
End point X Ø (abs) or end point referred to X0
(inc)
mm
X1α
(Taper
thread)
Thread taper
Degrees
X1
(Parting cut)
Depth for speed reduction Ø (abs) or depth for
speed reduction referred to X0 (inc)
mm
X2
(Parting cut)
Final depth Ø (abs) or final depth referred to X1
(inc)
mm
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