Siemens SINUMERIK 840D sl Operating Manual page 222

Programming a cycle
4.7 Milling
Parameter
Machining
position
X0
Y0
Z0
W
L
R
α0
Z1
DXY
DZ
UXY
UZ
Insertion
FZ
EP
ER
EW
222
Description
Single position
•
Mill rectangular pocket to the programmed position (X0, Y0, Z0).
Position pattern
•
Position with MCALL
The positions refer to the reference point:
Reference point X – (single position only)
Reference point Y – (single position only)
Reference point Z
Width of the rectangular pocket
Length of the rectangular pocket
Corner radius
Angle of rotation
Depth based on Z0 (abs or inc) – (only for ∇, ∇∇∇ or ∇∇∇ edge)
Maximum plane infeed – (only for ∇, ∇∇∇ or ∇∇∇ edge)
Alternately, you can specify the plane infeed in %, as a ratio → plane infeed (mm)
to milling cutter diameter (mm).
Maximum depth infeed – (only for ∇, ∇∇∇ or ∇∇∇ edge)
Plane finishing allowance – (only for ∇, ∇∇∇ or ∇∇∇ edge)
Depth finishing allowance – (only for ∇, ∇∇∇ or ∇∇∇ edge)
The following insertion modes can be selected – (only for ∇, ∇∇∇ or ∇∇∇ edge)
Centered G0
•
With G0, the pocket center point is approached at the retraction level, and
then, from this position, the reference point brought forward by the safety
clearance is approached also with G0. The machining of the rectangular
pocket is then performed according to the selected insertion strategy, taking
into account the programmed blank dimensions.
Centered: Insert vertically in center of pocket
•
The tool executes the calculated current depth infeed at the pocket center in a
single block. This setting can be used only if the cutter can cut across center or
if the pocket has been predrilled.
Helical: Insert along helical path
•
The cutter center point traverses along the helical path determined by the
radius and depth per revolution (helical path). If the depth for one infeed has
been reached, a full circle motion is executed to eliminate the inclined insertion
path.
Oscillating: Insert with oscillation along center axis of rectangular pocket
•
The cutter center point oscillates back and forth along a linear path until it
reaches the depth infeed. When the depth has been reached, the path is
traversed again without depth infeed in order to remove the slope caused by
insertion.
Depth infeed rate - (for insertion in center only)
Maximum pitch of helix – (for helical insertion only)
Radius of helix – (for helical insertion only)
The radius cannot be any larger than the cutter radius; otherwise, material will
remain.
Maximum insertion angle – (for insertion with oscillation only)
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
Unit
mm
mm
mm
mm
mm
mm
Degrees
mm
mm
%
mm
mm
mm
mm/min
mm/tooth
mm/rev
mm
Degrees
HMI sl Turning