Siemens SINUMERIK 840D Operation/Programming

3
10.04 Programming with ShopMill
3.8 Millin
g
3
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition 3-271
Call help display with
the
key
Help display for milling a circular pocket
Parameters Description Unit
T, F, V See Sec. "Programming the tool, offset value and spindle speed".
Machining type Roughing
Finishing
Finishing on edge
Chamfer
Single pos.
Pos. pattern
A
circular pocket is machined at the programmed position (X0, Y0, Z0).
Several circular pockets are machined in a position pattern (e.g. full circle, pitch
circle, matrix, etc.).
X0
Y0
Z0
The positions refer to the center point of the circular pocket:
Position in X direction (single position only), abs. or inc.
Position in Y direction (single position only), abs. or inc.
Workpiece height (single position only), abs. or inc.
mm
mm
mm
∅
Diameter of pocket mm
Z1 Depth of pocket in relation to Z0, abs. or inc. (not for chamfer) mm
DXY Max. infeed in plane (XY direction)
A
lternatively, you can specify the plane infeed as a %, as a ratio  plane infeed
(mm) to milling cutter diameter (mm). (not for chamfer)
mm
%
DZ Max. depth infeed (Z direction) (not for chamfer) mm
UXY Finishing allowance in plane (pocket edge) (not for chamfer) mm
UZ Finishing allowance in depth (pocket base) (not for chamfer) mm
Insertion: You can select one of several insertion strategies:
Helical: Insertion along helical path
The cutter center point traverses along the helical path determined by the radius and
depth per revolution. If the depth for one infeed has been reached, a full circle motion
is executed to eliminate the inclined insertion path.
Feedrate: Machining feedrate
Center: Insert vertically in center of pocket
The tool executes the calculated depth infeed vertically in the center of the pocket.
Feedrate: Infeed rate as programmed under FZ
Note: The vertical insertion into pocket center method can be used only if the tool
can cut across center or if the workpiece has been predrilled.

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB